Student Name Capella University BIO FPX 1000 Human Biology Prof. Name Date Media and Internet: COVID-19 vaccination during pregnancy has been the subject of significant discussion and misinformation online. Evidence from peer-reviewed research and public health organizations indicates that COVID-19 vaccination can help protect pregnant individuals from severe illness and does not appear to increase the risk of miscarriage or negatively affect fertility. Because social media platforms can spread both accurate and inaccurate claims, it is important to evaluate health information using reliable, evidence-based sources. This topic is particularly relevant to BIO FPX 1000 Assessment 7 Homework: Media and Internet: Accurate vs Inaccurate, which examines how information found online can be evaluated for credibility and accuracy. Why COVID-19 Vaccine Information During Pregnancy Matters Pregnancy can change the body’s immune and physiological responses, which may increase the risk of complications from certain respiratory infections. During the COVID-19 pandemic, questions emerged about whether vaccination was safe for pregnant individuals, whether it could affect fertility, and whether it might increase the risk of pregnancy loss. Research published during the pandemic helped address many of these concerns. Studies examining COVID-19 vaccination during pregnancy found no evidence that vaccination negatively affected important pregnancy outcomes. At the same time, COVID-19 infection itself was associated with increased risks of severe maternal illness and certain adverse pregnancy outcomes (Wang et al., 2021). For this reason, information about vaccination during pregnancy should be based on clinical research, public health guidance, and peer-reviewed evidence rather than unverified social media posts. Evidence From Research on COVID-19 Vaccination During Pregnancy One important source is the study “COVID-19 Vaccination during Pregnancy: Coverage and Safety,” which examined vaccination among pregnant individuals and evaluated potential effects on pregnancy outcomes. The study found that vaccination was not associated with adverse perinatal outcomes and supported the safety of COVID-19 vaccination during pregnancy (Blakeway et al., 2021). The findings are particularly useful when evaluating online claims that COVID-19 vaccines cause pregnancy complications. Rather than relying on individual anecdotes or social media discussions, researchers can examine outcomes across larger groups of vaccinated and unvaccinated individuals. Research has also examined concerns about fertility. Available evidence has not demonstrated that COVID-19 vaccination causes infertility. This distinction is important because misinformation about fertility can influence individuals who are pregnant or planning to become pregnant. Evaluating the Credibility of Health Information When researching COVID-19 vaccination, the credibility of the source is just as important as the information itself. The CRAAP Test is one framework that can be used to evaluate online information. CRAAP stands for Currency, Relevance, Authority, Accuracy, and Purpose. A credible source should provide current information, clearly identify its authors or organization, support claims with evidence, and explain its purpose. Peer-reviewed medical research and information published by recognized public health organizations generally provide stronger evidence than anonymous social media posts. The CDC is an example of a government public health organization that publishes evidence-based information about vaccination and pregnancy. Government and academic sources can be cross-checked against peer-reviewed research to determine whether claims are supported by scientific evidence. Reddit and the Spread of COVID-19 Vaccine Misinformation Reddit is a social news and discussion platform where users can share information, opinions, personal experiences, and links. Although it can be useful for discovering different perspectives, information posted by individual users is not automatically medically verified. This creates a potential problem when discussing complex health issues such as COVID-19 vaccination during pregnancy. A personal experience may be genuine, but it does not establish that the same outcome will occur in other people. Similarly, repeated claims within an online community do not necessarily make those claims scientifically accurate. When encountering a vaccination claim on Reddit or another social media platform, users should consider: These questions can help readers distinguish evidence-based health information from unsupported claims. What Research Shows About COVID-19 and Pregnancy Research conducted during the pandemic showed that COVID-19 infection can create additional health risks during pregnancy. Pregnant individuals with COVID-19 may face a higher risk of severe illness compared with nonpregnant individuals of similar age. Some studies also identified associations between COVID-19 infection and adverse pregnancy outcomes (Wang et al., 2021; Wei et al., 2021). These findings are important because discussions about vaccination should consider both potential benefits and risks. Focusing only on claims about vaccine risks without considering the documented risks associated with COVID-19 infection provides an incomplete picture. COVID-19 vaccination was therefore investigated as one approach to reducing the risk of severe disease during pregnancy. Public health recommendations have generally emphasized vaccination for pregnant individuals and those planning pregnancy, based on accumulating safety and effectiveness evidence. Prevention Strategies During Pregnancy Vaccination is only one component of reducing the risk of respiratory infection. General infection-prevention practices can also help reduce exposure to viruses. Depending on public health guidance and individual circumstances, preventive strategies may include good hand hygiene, avoiding close contact with people who are sick, improving indoor ventilation, and avoiding crowded settings when respiratory viruses are circulating. Healthy behaviors and appropriate prenatal care are also important for maintaining overall health during pregnancy. Individuals with questions about vaccination or infection prevention should discuss their circumstances with a qualified healthcare professional. How to Determine Whether Information Is Accurate The information used for BIO FPX 1000 Assessment 7: Media and Internet: Accurate vs Inaccurate should be evaluated systematically rather than accepted based solely on where it appears online. Peer-reviewed journal articles provide an important foundation because research findings are evaluated through an established scholarly review process. Government health agencies can provide additional information about vaccination recommendations, disease prevention, and public health guidance. Using multiple reliable sources is especially important when researching controversial or frequently misunderstood health topics. If several independent, reputable sources report consistent findings, the information has stronger support than a claim appearing only on an unverified social media account. Using the CRAAP Test to Evaluate COVID-19 Information The CRAAP Test provides a practical method for determining whether online information should be considered reliable. Its five components can be applied to COVID-19

Student Name Capella University BIO FPX 1000 Human Biology Prof. Name Date BIO FPX 1000 Assessment 6 Patient Case Study Profiles – Cancer Causes Breast cancer risk varies from person to person and is influenced by factors such as age, family history, reproductive history, hormone exposure, alcohol use, body weight, and inherited genetic mutations. In these four patient profiles Mary, Paula, June, and Nora several factors increase breast cancer risk, particularly family history and possible hereditary cancer syndromes. Risk assessment should be individualized, and recommendations may include appropriate screening, genetic counseling or testing, healthy lifestyle changes, and management of other medical conditions. Importantly, hormone replacement therapy should not be recommended as a way to reduce breast cancer risk without careful evaluation by a qualified healthcare professional. Mary: Breast Cancer Risk Factors Mary is a 64-year-old woman who had her first child at age 20 and experienced menopause at 58. After menopause, she used estrogen replacement therapy for approximately six years and subsequently gained weight. Her mother developed breast cancer at age 37, and Mary experienced menarche at age 13. Mary’s most important breast cancer risk factor is her strong family history. Having a first-degree relative, such as a mother or sister, with breast cancer can increase an individual’s risk, particularly when the relative was diagnosed at a young age. Early-onset breast cancer in a close relative may also raise concern about an inherited genetic predisposition. Her history of postmenopausal hormone therapy and weight gain may also be relevant. Research has identified associations between certain forms of menopausal hormone therapy, body weight, and breast cancer risk, although the degree of risk depends on factors such as the type of hormone therapy, duration of use, and individual characteristics. Mary’s Breast Cancer Risk Assessment A breast cancer risk calculator may provide an estimate of an individual’s short-term and lifetime risk, but the result depends on the specific model and the information entered. Risk estimates should therefore be interpreted in the context of Mary’s personal and family history rather than viewed as a definitive prediction. Because Mary’s mother developed breast cancer at a young age, genetic counseling may be appropriate. A healthcare professional can determine whether Mary meets criteria for genetic testing for hereditary breast cancer genes such as BRCA1 and BRCA2. Recommendations for Mary Mary should discuss her family history and previous hormone therapy with her healthcare provider. Depending on her calculated risk and family history, her provider may recommend routine mammography and, if she is considered high risk, additional imaging such as breast MRI. Healthy lifestyle measures can also help reduce modifiable breast cancer risk. These may include maintaining a healthy body weight, participating in regular physical activity, limiting alcohol consumption, and following a balanced diet. Estrogen therapy should not be continued specifically to prevent breast cancer. Decisions about menopausal hormone therapy should consider its indications, benefits, risks, duration, and the individual’s personal and family history. Paula: Breast Cancer and Hereditary Cancer Risk Paula is 71 and is being treated for bladder cancer that has spread to her ovaries and lymphatic system. Her sister was treated for breast cancer three years ago, while her mother died from lung cancer. Paula also reports cancer diagnoses in two paternal uncles and her maternal grandmother. This pattern of cancer across several relatives raises concern about a possible hereditary cancer syndrome. The concern becomes greater because Paula’s sister reportedly carries a BRCA1 mutation. BRCA1 and BRCA2 pathogenic variants are associated with increased risks of breast and ovarian cancers, among other cancers. Paula’s Breast Cancer Risk Assessment A family history involving multiple relatives with cancer does not automatically establish that Paula has a hereditary cancer mutation. However, a known BRCA1 mutation in a close relative provides a strong reason to discuss genetic counseling and testing. If Paula has not been tested, a genetic counselor can review her family history and determine the appropriate genetic test. If she carries the familial BRCA1 mutation, her healthcare team can develop a surveillance and risk-management plan based on her age, current cancer diagnosis, treatment status, and overall health. Recommendations for Paula Paula’s immediate cancer care should be coordinated by her oncology team. Because she already has advanced bladder cancer, treatment decisions should be based on the cancer’s pathology, stage, molecular characteristics, previous treatments, and overall health rather than family history alone. Chemotherapy may be part of bladder cancer treatment for some patients, but it is not appropriate to recommend chemotherapy solely because a patient has a family history of breast cancer. Her oncology team should determine whether chemotherapy, immunotherapy, targeted therapy, surgery, radiation, or another treatment is appropriate. Genetic counseling is particularly relevant because of her sister’s reported BRCA1 mutation. Paula should also discuss appropriate breast surveillance with her healthcare providers. June: Breast Cancer Risk Factors June is 58 and receives regular mammograms. Her family history includes an aunt with breast cancer and a mother who had a brain tumor. She also has high blood pressure, elevated cholesterol, and fragile bones. June’s family history may contribute to her breast cancer risk, although an aunt is a second-degree relative and generally provides less risk information than a first-degree relative such as a mother or sister with breast cancer. The type of her mother’s brain tumor is also important because not all brain tumors are associated with hereditary breast cancer syndromes. Her previous use of oral contraceptives may be relevant because research has found a small association between current or recent hormonal contraceptive use and breast cancer risk. However, the relationship is complex, and contraceptive history should be considered alongside other risk factors. Recommendations for June June should continue breast cancer screening according to recommendations appropriate for her age and individual risk. For women at average risk, mammography is generally performed at regular intervals rather than every few weeks. Women with substantially elevated hereditary or lifetime risk may require a different surveillance strategy. Because June has hypertension and elevated cholesterol, cardiovascular risk management is also important. A healthy dietary pattern, such as

Student Name Capella University BIO FPX 1000 Human Biology Prof. Name Date BIO FPX 1000 Assessment 5: Genetics Lab Genetic testing helps healthcare professionals identify inherited conditions, understand chromosome abnormalities, assess disease risks, and support informed healthcare decisions. In a genetics laboratory, chromosome studies may be used for congenital disorders, prenatal diagnosis, and hematologic or oncologic conditions. This assessment examines the inheritance of autosomal recessive traits, the genetic basis of sex determination, karyotype results, the effects of chromosomal abnormalities on body systems, and the benefits and limitations of genetic testing. Autosomal Recessive Inheritance and the Probability of Inheriting a Genetic Disorder Autosomal recessive disorders occur when an individual inherits two copies of a disease-causing variant, one from each parent. When both parents are heterozygous carriers, each pregnancy has a 25% chance that the child will inherit both disease-causing alleles and be affected, a 50% chance of being an unaffected carrier, and a 25% chance of inheriting neither disease-causing allele. This probability can be demonstrated using a Punnett square. Each carrier parent has one normal allele and one disease-associated allele. Because each parent has a 50% chance of passing either allele to a child, the probability that both parents will transmit the disease-associated allele is 25% (Gulani & Weiler, 2020). The inheritance pattern follows Mendel’s Law of Segregation, which states that the two alleles for a gene separate during the formation of reproductive cells. Autosomal recessive conditions generally affect males and females at similar rates because the relevant genes are located on autosomes rather than sex chromosomes. Pedigree analysis can also help healthcare professionals recognize autosomal recessive inheritance. Several characteristics can suggest this pattern: Understanding these inheritance patterns is important when discussing recurrence risks and reproductive options with patients and families. Determining the Sex of a Fetus Through Genetic Testing In the laboratory scenario, Sandra is a 28-year-old woman with sickle cell disease who is in her third trimester of pregnancy and has undergone prenatal genetic evaluation. The biological sex of a fetus is determined by its sex chromosomes. Typically, individuals with two X chromosomes have a female chromosomal pattern (46,XX), while individuals with one X and one Y chromosome have a male chromosomal pattern (46,XY). A karyotype can identify the number and general structure of chromosomes and therefore can determine whether the chromosome complement includes an X or Y chromosome. Other prenatal methods, including cell-free fetal DNA testing, can also provide information about fetal sex depending on the test and clinical circumstances. Sickle cell disease itself does not determine the sex of the fetus. It is an autosomal recessive disorder, meaning the disease-causing gene is located on an autosome rather than a sex chromosome. Consequently, males and females can both inherit sickle cell disease. Sickle cell disease results primarily from a pathogenic variant in the HBB gene, which encodes the beta-globin component of hemoglobin. The condition can cause chronic hemolytic anemia, episodes of vaso-occlusive pain, and an increased risk of infections and other complications (Inusa et al., 2019). Understanding Karyotype Results A karyotype is a laboratory test that examines the number, size, and structure of an individual’s chromosomes. Chromosomes are arranged into pairs so that healthcare professionals can identify major numerical or structural abnormalities. A normal human somatic-cell karyotype generally contains 46 chromosomes arranged into 23 pairs. Abnormal findings may involve an extra or missing chromosome or a significant structural change in a chromosome. For example, a karyotype may identify abnormalities such as: A normal karyotype does not mean that a person has no genetic condition. Some genetic disorders result from changes that are too small to be detected through conventional chromosome analysis. Therefore, additional tests such as chromosomal microarray, targeted molecular testing, or DNA sequencing may be appropriate depending on the clinical question (Shi et al., 2019). What the Genetic Counselor Should Explain About Sickle Cell Disease A genetic counselor should clarify that different genetic tests identify different types of genetic changes. Conventional karyotyping examines whole chromosomes and is useful for detecting major chromosomal abnormalities, but it is not the primary test for identifying the molecular mutation responsible for sickle cell disease. Sickle cell disease is generally associated with pathogenic variants in the HBB gene. Molecular genetic testing can identify specific variants, while hemoglobin testing can help determine the type of hemoglobin present. These approaches provide information that is different from the information obtained through a standard karyotype. For Sandra, genetic counseling can help explain the inheritance pattern of sickle cell disease and the potential implications for her child. If both parents carry a disease-causing HBB variant associated with an autosomal recessive form of sickle cell disease, each pregnancy can have a 25% chance of producing an affected child, a 50% chance of producing a carrier, and a 25% chance of producing a child who inherits neither disease-associated allele. Genetic counseling should also address the limitations of testing, the meaning of uncertain findings when applicable, reproductive considerations, and the importance of interpreting genetic results within the patient’s clinical and family history. Benefits of Genetic Testing Genetic testing can provide valuable information for patients, families, and healthcare professionals. One major benefit is the possibility of reaching a diagnosis when clinical symptoms alone do not clearly identify a disorder. Advances in molecular testing and next-generation sequencing have expanded the ability to identify disease-associated genetic variants. For individuals with suspected rare diseases, genetic testing can sometimes shorten the diagnostic process and reduce the need for repeated or invasive investigations (Kruse et al., 2022). Genetic results may also help healthcare professionals develop appropriate monitoring and treatment strategies. In some situations, identifying an inherited condition allows family members to receive counseling or testing and helps patients understand potential reproductive risks. Limitations and Ethical Concerns of Genetic Testing Although genetic testing can provide important clinical information, it also presents medical, ethical, psychological, and privacy considerations. A genetic result may have implications not only for the individual being tested but also for biological relatives who may share the same genetic variant. Privacy and confidentiality are

Student Name Capella University BIO FPX 1000 Human Biology Prof. Name Date Digestion Lab: Digestion is the physiological process through which the body breaks food down into smaller components that can be absorbed and used for energy, growth, and other essential functions. A Digestion Lab typically examines how food is processed by the digestive system while also connecting digestion with nutrition, calorie intake, and food-label analysis. In this assessment, daily calorie needs are considered alongside the nutritional information provided for a selected food, such as Crazy Richard’s Crunchy Peanut Butter. Understanding serving size, calories, fats, carbohydrates, protein, sodium, vitamins, and minerals can help explain how a particular food contributes to overall dietary intake. What Is Digestion? Digestion involves a series of mechanical and chemical processes that begin when food enters the mouth. The digestive system breaks food into smaller nutrients that the body can absorb and use. These nutrients are transported through the body and support processes such as energy production, tissue growth, cellular repair, and normal organ function. The gastrointestinal tract plays an important role throughout this process. Food moves through the digestive tract while enzymes, acids, and other digestive substances help break down carbohydrates, proteins, and fats. Nutrients are subsequently absorbed, while indigestible materials are eliminated as waste (Livovsky et al., 2020; Sensoy, 2021). Daily Caloric Intake Calories represent the amount of energy obtained from food and beverages. The body requires this energy to maintain basic physiological functions and support physical activity. However, calorie requirements are not identical for everyone. Age, sex, body size, metabolism, activity level, pregnancy, and lactation can all influence individual energy needs. A commonly cited general reference is approximately 2,000 calories per day for women and 2,500 calories per day for men, although actual requirements can vary considerably among individuals (Kolte et al., 2022). These figures should therefore be viewed as general reference values rather than universal targets. Consuming too few calories may result in inadequate energy availability and fatigue, whereas consistently consuming more energy than the body uses can contribute to weight gain and obesity. Adequate energy intake is particularly important during pregnancy because additional energy and nutrients support maternal changes and fetal development (Most et al., 2019). Calculating the Percentage of Daily Calories To determine how much of a daily calorie intake comes from a particular food, the calories in one serving can be divided by the estimated daily calorie requirement and multiplied by 100. Percentage of daily calories = (Calories in one serving ÷ Daily calorie requirement) × 100 For example, if a food provides 180 calories per serving and an individual uses a 2,000-calorie daily reference: (180 ÷ 2,000) × 100 = 9% Therefore, one serving provides approximately 9% of a 2,000-calorie daily reference intake. This calculation provides context for understanding how an individual food fits into an overall diet. It does not, by itself, determine whether the food is healthy or unhealthy because nutritional quality depends on the complete nutrient profile and the person’s overall dietary pattern. Crazy Richard’s Crunchy Peanut Butter: Serving Size and Calories Crazy Richard’s Crunchy Peanut Butter can be examined as an example of how food-label information is used in a Digestion Lab. The stated serving size is approximately 2 tablespoons (32 grams), providing about 180 calories per serving. Serving size is important because all nutritional values listed on a food label are generally based on the specified amount. Eating more or less than that amount changes the actual amount of calories and nutrients consumed. For example, consuming two servings would provide approximately 360 calories. Therefore, comparing the actual portion consumed with the label’s serving size is essential when estimating daily nutrient and calorie intake. Fat and Protein Content The selected peanut butter provides approximately 16 grams of fat and 8 grams of protein per serving. Fat is an important source of energy and also supports several physiological functions. Protein is necessary for tissue maintenance, growth, repair, and other biological processes. Although peanut butter can contribute protein and other nutrients to the diet, its relatively high calorie density means that portion size remains important. A food can provide useful nutrients while still contributing a substantial amount of energy when consumed in large quantities. Sodium, Carbohydrates, and Sugar According to the label information considered in this assessment, the peanut butter contains approximately 5 grams of total carbohydrate per serving, including about 3 grams of dietary fiber and 2 grams of sugar. It is also described as containing little or no sodium in the selected product information. Dietary fiber is an important component of a balanced diet and can support normal digestive function. Sugar intake should also be considered within the context of the entire diet. When peanut butter is paired with foods containing substantial amounts of added sugar, such as sweetened spreads, desserts, or sugary beverages, the overall nutritional profile of the meal or snack can change. Vitamins and Minerals Peanut butter can contribute several nutrients to the diet, including minerals such as iron and calcium. These nutrients have important physiological roles. Iron contributes to oxygen transport and other biological functions, while calcium is essential for maintaining bones and teeth and supporting normal muscle and nerve function. The nutritional contribution of any individual food should be considered as part of the overall diet rather than evaluated in isolation. A varied diet can provide a broader range of vitamins and minerals than relying heavily on a single food. Pros and Cons of the Serving Size A serving of approximately 2 tablespoons provides a convenient way to measure the amount of peanut butter consumed and makes it easier to compare intake with the nutrition label. The food also provides protein, fat, calories, and other nutrients in a relatively small serving. However, peanut butter is calorie-dense. Consuming substantially more than the recommended serving can increase total calorie intake quickly. For individuals monitoring their energy intake, measuring portions can therefore be useful. Pros and Cons of the Nutritional Profile The selected peanut butter has several nutritional characteristics that may

Student Name Capella University BIO FPX 1000 Human Biology Prof. Name Date Urinary Lab: A urinary lab, commonly called urinalysis, is a routine diagnostic test used to evaluate urine and identify signs of urinary tract, kidney, metabolic, and other health conditions. Urinalysis can examine the physical appearance of urine, measure specific chemical substances, and identify cells or other microscopic findings. It is particularly useful when a patient has symptoms such as painful urination, blood in the urine, changes in urinary habits, or concerns related to kidney disease or diabetes. Urinalysis is also relevant to patients with chronic conditions such as diabetes and hypertension because these diseases can increase the risk of kidney damage. Understanding what a urinary lab measures, why abnormal findings occur, and how results are interpreted can help explain the connection between urine abnormalities and overall health. What Is a Urinalysis? A urinalysis is a laboratory examination of urine that helps healthcare professionals detect abnormalities and investigate possible disease. It may be ordered as part of a routine health examination or when a patient has symptoms suggesting a urinary, kidney, metabolic, or systemic condition. A standard urinalysis generally involves three complementary approaches: Because urine contains metabolic waste products and substances filtered by the kidneys, changes in its composition can provide useful information about a person’s health. However, an abnormal urinalysis result does not automatically establish a specific diagnosis. Results must be interpreted alongside the patient’s symptoms, medical history, physical examination, and other laboratory or imaging findings. Why Is Urinalysis Important? Urinalysis can help healthcare professionals investigate several conditions, including urinary tract infections, kidney disorders, diabetes, and other systemic diseases. It can also provide information about kidney function and help identify abnormalities that require additional testing. For patients with diabetes or hypertension, urine testing can be particularly important because prolonged high blood glucose and high blood pressure can contribute to chronic kidney disease. Monitoring kidney-related laboratory findings allows healthcare professionals to identify potential problems and determine whether additional evaluation is needed. Urine testing may be recommended when a patient experiences: How Is a Urinalysis Performed? The patient generally provides a urine specimen in a sterile container. Depending on the purpose of the test, healthcare professionals may provide specific instructions about collecting the sample. The specimen can then undergo physical, chemical, and microscopic evaluation. A healthcare professional interprets the findings based on the patient’s clinical circumstances rather than considering a single laboratory value in isolation. Diabetes and Its Relationship to Kidney Health Diabetes is a chronic metabolic condition in which the body does not produce enough insulin, does not use insulin effectively, or both. Insulin helps regulate blood glucose levels. Persistent hyperglycemia can gradually damage blood vessels and organs, including the kidneys. The World Health Organization identifies kidney failure, cardiovascular disease, vision loss, and other complications among the serious consequences associated with diabetes. The two major forms of diabetes are type 1 diabetes and type 2 diabetes. Type 1 Diabetes Type 1 diabetes is an autoimmune condition in which the immune system attacks the pancreatic cells responsible for producing insulin. People with type 1 diabetes require insulin replacement to maintain blood glucose levels. Management typically involves insulin therapy, blood glucose monitoring, nutrition planning, physical activity, and ongoing medical care. Treatment plans are individualized according to factors such as age, lifestyle, glucose patterns, and other health considerations. Type 2 Diabetes Type 2 diabetes occurs when the body becomes resistant to insulin and, over time, may not produce enough insulin to maintain normal blood glucose levels. Risk is influenced by multiple factors, including genetics, age, excess body weight, and physical inactivity. Management can involve lifestyle changes, glucose-lowering medications, and insulin when indicated. Maintaining healthy blood glucose and blood pressure levels is important because it can reduce the risk of diabetes-related complications, including kidney disease. How Is Diabetes Managed? Diabetes management depends on the type of diabetes and the individual’s clinical circumstances. Common components include maintaining appropriate blood glucose levels, following an appropriate nutrition plan, engaging in regular physical activity when medically appropriate, taking prescribed medications, and monitoring for complications. For people with type 1 diabetes, insulin is essential. People with type 2 diabetes may use lifestyle interventions, oral or injectable medications, insulin, or combinations of these approaches depending on their treatment needs. Regular monitoring is especially important when diabetes is accompanied by hypertension because both conditions can increase the risk of kidney damage. What Causes Blood in Urine? Blood in the urine is called hematuria. It may be visible to the patient or detectable only through laboratory testing. Hematuria can have many causes, ranging from relatively minor conditions to disorders requiring prompt medical evaluation. Possible causes include urinary tract infections, kidney stones, kidney disease, prostate conditions, trauma, medications, and other urinary tract disorders. Diabetes-related kidney disease can also affect the kidneys and lead to abnormal urine findings. Blood detected in urine should therefore not automatically be attributed to diabetes. Additional assessment may be necessary to determine the underlying cause. Why Can Diabetes Affect the Kidneys? Persistently elevated blood glucose can damage small blood vessels and other structures within the kidneys. Over time, this damage can impair the kidneys’ ability to filter waste and maintain fluid and electrolyte balance. Hypertension can further increase the strain placed on the kidneys. For this reason, people with diabetes are commonly monitored for kidney disease using blood and urine tests. Important kidney-related assessments may include estimated glomerular filtration rate (eGFR) and urine albumin measurements in addition to other laboratory tests. These tests provide information that a basic urinalysis alone cannot provide. Patient Case: Urinary Lab Evaluation Consider a 62-year-old patient presenting to an outpatient kidney center with high blood pressure and kidney pain. The patient has an 18-year history of type 2 diabetes and hypertension. Because of these risk factors and symptoms, further evaluation includes kidney imaging and urinalysis. An ultrasound examination of the kidneys, ureters, and urinary bladder reports normal bladder wall appearance. The reported pre-void bladder volume is 684 mL, while the post-void volume

Student Name Capella University BIO FPX 1000 Human Biology Prof. Name Date Neuromuscular Lab and the Importance of Diagnostic Eye Exams A neuromuscular lab studies how nerves and muscles function, recover from injury, and influence movement and sensation. In clinical eye examinations, neurological and reflex assessments can also provide important information about visual function and possible neuromuscular problems. Regular comprehensive eye exams help detect vision changes, eye disease, and other conditions early, allowing appropriate treatment and referral when necessary. What Is a Neuromuscular Lab? A neuromuscular lab focuses on conditions affecting the peripheral nerves, muscles, and their functional connections. Research may include the treatment of peripheral nerve injuries, including neuromas, as well as the development of technologies that improve control of prosthetic limbs. Unlike many cells in the central nervous system, peripheral nerves have some capacity to regenerate after injury. Researchers therefore study the biological processes involved in nerve regeneration while developing surgical techniques and technologies designed to improve functional recovery. The University of Michigan Department of Surgery’s Neuromuscular Lab conducts research into peripheral nerve regeneration, neural control, and innovative approaches for patients with nerve injuries. This work contributes to a broader understanding of how damaged peripheral nerves can recover and how treatment can improve patient outcomes. What Is a Comprehensive Eye Exam? A comprehensive eye exam involves several tests that evaluate vision and assess the health of the eyes. Depending on the patient’s age, symptoms, medical history, and risk factors, an eye examination may include visual acuity testing, refraction, eye muscle evaluation, pupil assessment, and examination of the internal and external structures of the eye. The American Academy of Ophthalmology recommends that adults have a baseline eye examination around age 40, even when they do not have obvious vision problems. Earlier or more frequent examinations may be appropriate for people with specific risk factors. Regular examinations are particularly important for people who: The appropriate examination schedule varies according to individual risk factors and should be determined with an eye-care professional. Why Are Regular Eye Exams Important? Eye examinations do more than determine whether a person needs glasses or a change in prescription. They can help identify eye diseases and other abnormalities before significant vision loss occurs. Early detection can allow patients to receive treatment or make appropriate lifestyle changes before a condition causes further damage. Some causes of vision impairment can be prevented, treated, or managed when identified early. For this reason, people should not wait until they experience severe symptoms before seeking an eye examination. Changes such as persistent redness, pain, blurred vision, flashes, floaters, or sudden loss of vision warrant prompt medical attention. How Are Neuromuscular Conditions Related to Eye Examinations? The eyes and their associated muscles and nerves depend on complex neuromuscular pathways. Abnormal eye movements, pupil responses, muscle function, or reflexes can sometimes provide clues about neurological or neuromuscular disorders. Research has also identified metabolic and mitochondrial disorders that can produce neurological and neuromuscular manifestations. For example, defects involving mitochondrial flavin adenine dinucleotide transport have been associated with neurological and neuromuscular phenotypes. An eye examination should therefore be viewed as part of a broader clinical assessment when symptoms suggest neurological involvement. Additional neurological, ophthalmological, or laboratory investigations may be required depending on the patient’s presentation. Why Is Reflex Measurement Important in Diagnostic Eye Exams? Reflex testing can provide useful information about the neurological pathways involved in vision and eye function. The assessment of reflexes may help clinicians identify or localize abnormalities affecting the nervous system. A patient’s reflex responses can contribute to bedside neurological assessment and may provide information that complements clinical neurophysiological and imaging investigations. Reflex testing is therefore particularly useful when an eye complaint may have an underlying neurological or neuromuscular component. What Happens If Reflexes and Other Eye Findings Are Not Evaluated? Failing to perform appropriate components of an eye or neurological examination can make it more difficult to recognize certain abnormalities. When clinically relevant findings are overlooked, diagnosis and treatment may be delayed. This is especially important when eye symptoms occur alongside neurological signs, trauma, chemical exposure, severe headache, or sudden changes in vision. A complete assessment helps clinicians determine whether symptoms originate primarily from the eye, the nervous system, or another underlying condition. Eye-movement assessment has also been investigated in relation to mild traumatic brain injury. Although eye-movement findings alone do not establish a diagnosis, they can contribute to a broader clinical evaluation when appropriate. Patient Examination Examples The following cases illustrate how symptoms, medical history, and examination findings can influence the need for further evaluation. They should be considered educational examples rather than individualized medical diagnoses. Patient 1: Elena Elena is 36 years old and presents with a red, painful eye. Her blood pressure is 140/90 mm Hg, and she reports experiencing similar episodes previously. An eye examination identifies reduced vision. Because recurrent eye pain and reduced vision can have several possible causes, she should receive an appropriate clinical evaluation rather than relying solely on avoiding bright or high-beam lights. Persistent or recurrent symptoms may require assessment by an eye-care professional to determine the underlying cause. Patient 2: Manav Dutt Manav Dutt is 45 years old and reports blurred vision and frequent headaches. His blood pressure is 140/90 mm Hg, and his medical history includes hypertension and cigarette smoking. Examination indicates partial vision loss associated with a chemical injury. Chemical eye injuries can require urgent medical assessment because the extent of tissue damage may not always be immediately apparent. Prompt evaluation and referral to an ophthalmologist are appropriate when significant chemical exposure or vision loss is suspected. Patient 3: Spencer Hogle Spencer Hogle is a 36-year-old factory worker who presents with eye bleeding. His blood pressure is 113/80 mm Hg, and he reports no previous similar eye problems. The examination suggests serious ocular injury associated with corrosive or metallic exposure. A suspected severe chemical or penetrating eye injury is an emergency. Immediate professional evaluation is necessary, and treatment may include specialized ophthalmological or surgical management depending on the

Student Name Capella University BIO FPX 1000 Human Biology Prof. Name Date Cardiovascular System Lab:  The Cardiovascular System Lab helps evaluate how the heart and circulatory system function by examining measurements such as blood pressure and heart rate. In general, a healthy adult resting heart rate is usually 60–100 beats per minute, while normal blood pressure is generally around 120/80 mm Hg or lower, depending on the individual’s health and clinical circumstances. Persistent elevations in blood pressure or an unusually high or low heart rate may indicate an increased risk of cardiovascular problems and should be evaluated in context. This lab analysis examines blood pressure, heart rate, their relationship, patient results, and lifestyle approaches that can support cardiovascular health. What Is Blood Pressure? Blood pressure is the force of circulating blood against the walls of the arteries as the heart pumps blood throughout the body. It is recorded using two numbers: systolic blood pressure and diastolic blood pressure. Systolic blood pressure is the pressure in the arteries when the heart contracts and pumps blood. Diastolic blood pressure is the pressure in the arteries while the heart relaxes between beats. A blood pressure reading is expressed in millimeters of mercury (mm Hg), such as 120/80 mm Hg. Blood pressure naturally changes throughout the day because of factors such as physical activity, stress, sleep, caffeine, medications, and body position. Therefore, one elevated reading does not necessarily establish a diagnosis of hypertension. According to current American Heart Association categories, blood pressure below 120/80 mm Hg is considered normal for adults. Readings from 130–139 mm Hg systolic or 80–89 mm Hg diastolic fall within Stage 1 hypertension, while readings of 140 mm Hg or higher systolic or 90 mm Hg or higher diastolic fall within Stage 2 hypertension (American Heart Association, 2024). What Is Heart Rate? Heart rate refers to the number of times the heart beats in one minute. It is influenced by the body’s oxygen requirements and can change in response to exercise, emotions, temperature, medications, illness, and other factors. For most adults, a resting heart rate between 60 and 100 beats per minute (bpm) is considered normal. A lower resting heart rate may occur in physically active individuals and does not necessarily indicate a health problem. Maximum heart rate refers to the highest number of beats per minute that may occur during strenuous exercise. A commonly used estimate is: Estimated maximum heart rate = 220 − age This formula provides only an estimate. Individual maximum heart rates can vary, so it should not be treated as an exact measurement of cardiovascular fitness or health. An unusually rapid or slow heart rate can have several causes. Persistent changes, particularly when accompanied by symptoms such as chest discomfort, shortness of breath, dizziness, fainting, or weakness, warrant medical evaluation. How Are Heart Rate and Blood Pressure Related? Heart rate and blood pressure are related because both are affected by cardiovascular activity, but they are not the same measurement and do not always increase or decrease together. When the heart beats faster, it can temporarily increase cardiac output, which may influence blood pressure. However, blood pressure is also affected by blood vessel resistance, blood volume, arterial stiffness, medications, physical activity, and other physiological factors. For this reason, a person can have a normal heart rate and elevated blood pressure, or an elevated heart rate without having hypertension. Research has also found associations between elevated resting heart rate and cardiovascular risk, although heart rate alone cannot be used to diagnose hypertension or predict an individual’s outcome (Dalal et al., 2019; Goorakani et al., 2020). Why Is High Blood Pressure a Cardiovascular Concern? Persistent high blood pressure can place additional stress on the heart and blood vessels. Over time, uncontrolled hypertension is associated with an increased risk of cardiovascular conditions, including heart disease, stroke, and other complications (Fuchs & Whelton, 2020). Because hypertension may not cause noticeable symptoms, regular blood pressure monitoring is important. Headaches or other symptoms should not automatically be attributed to high blood pressure without appropriate clinical assessment. Cardiovascular System Lab Results The following patient examples demonstrate how blood pressure and heart rate can be interpreted together rather than evaluated independently. Patient 1: Tanya Age: 40Primary complaint: Frequent headachesBlood pressure: 125/80 mm HgHeart rate: 66–72 bpm Tanya’s resting heart rate falls within the commonly accepted adult resting range of 60–100 bpm. Her blood pressure is above the normal systolic range under current American Heart Association categories because the systolic measurement is 120–129 mm Hg, while the diastolic measurement remains below 80 mm Hg. Her frequent headaches should be evaluated based on their cause rather than assuming that blood pressure is responsible. Continued blood pressure monitoring and discussion with a healthcare professional may be appropriate, particularly if elevated readings persist. Patient 2: Caroline Mendoza Age: 45Primary complaint: Persistent high blood pressureBlood pressure: 140/90 mm HgHeart rate: 135 bpm Caroline’s blood pressure reading of 140/90 mm Hg falls within the Stage 2 hypertension range under current American Heart Association categories. Her heart rate of 135 bpm is also considerably above the typical adult resting range. Because both measurements are elevated, the results warrant clinical attention, especially if the heart rate was measured while she was resting. A rapid heart rate can have multiple causes, including exercise, stress, fever, medications, dehydration, or an abnormal heart rhythm. The appropriate response depends on the patient’s symptoms, medical history, and repeated measurements. If a person has a very rapid heart rate together with symptoms such as chest pain, difficulty breathing, fainting, severe dizziness, or other concerning symptoms, urgent medical evaluation is appropriate. Lifestyle Changes That Support Cardiovascular Health Lifestyle habits play an important role in maintaining healthy blood pressure and supporting cardiovascular function. Depending on an individual’s health status, healthcare professionals may recommend a combination of dietary, physical activity, sleep, and stress-management strategies. Common heart-healthy approaches include: Lifestyle changes can support cardiovascular health, but individuals with diagnosed hypertension or other cardiovascular conditions should not stop or replace prescribed treatment