BIO FPX 1000 Assessment 1 Cardiovascular System Lab

Grace J.
September 30, 2026September 30, 2026
BIO-FPX1000, BS Psychology

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: 40
Primary complaint: Frequent headaches
Blood pressure: 125/80 mm Hg
Heart 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: 45
Primary complaint: Persistent high blood pressure
Blood pressure: 140/90 mm Hg
Heart 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:

Engaging in regular physical activity appropriate for the individual’s health status.
Following a balanced eating pattern that emphasizes vegetables, fruits, whole grains, and other nutrient-dense foods.
Limiting excessive sodium intake.
Maintaining a healthy body weight when appropriate.
Avoiding tobacco products.
Limiting excessive alcohol consumption.
Getting adequate and consistent sleep.
Managing stress through healthy coping strategies.
Monitoring blood pressure when recommended by a healthcare professional.
Taking prescribed medications as directed.

Lifestyle changes can support cardiovascular health, but individuals with diagnosed hypertension or other cardiovascular conditions should not stop or replace prescribed treatment without consulting their healthcare provider.

Key Takeaways From a Cardiovascular System Lab

A cardiovascular system lab provides useful information about heart and circulatory function by examining measurements such as blood pressure and heart rate. Blood pressure reflects the force of blood against arterial walls, while heart rate measures the number of heartbeats per minute.

A few important points are:

A typical adult resting heart rate is 60–100 bpm.
Normal adult blood pressure is generally below 120/80 mm Hg.
Blood pressure and heart rate are related but measure different aspects of cardiovascular function.
A single abnormal measurement does not necessarily establish a diagnosis.
Persistent high blood pressure can increase cardiovascular risk.
A significantly elevated resting heart rate should be interpreted in relation to symptoms, medications, activity, and other health factors.
Healthy lifestyle habits can contribute to better cardiovascular health.

Conclusion

The Cardiovascular System Lab demonstrates how blood pressure and heart rate can be used to assess cardiovascular function. Blood pressure measures the force of circulating blood against arterial walls, while heart rate measures how frequently the heart beats. Although the two measurements are physiologically connected, an abnormal heart rate does not automatically mean that blood pressure is elevated.

The patient results also demonstrate why cardiovascular measurements should be interpreted in context. Tanya’s heart rate is within the typical adult resting range, while her blood pressure is slightly above the normal systolic range. Caroline’s results show both elevated blood pressure and a markedly elevated heart rate, making further clinical assessment particularly important if these measurements were obtained at rest.

Regular monitoring, healthy lifestyle choices, and appropriate medical follow-up can help identify cardiovascular concerns and support long-term heart health.

References

American Heart Association. (2024). Understanding blood pressure readings. https://www.heart.org/en/health-topics/high-blood-pressure/understanding-blood-pressure-readings

American Heart Association. (2024). Target heart rates chart. https://www.heart.org/en/healthy-living/fitness/fitness-basics/target-heart-rates

Dalal, J., Dasbiswas, A., Sathyamurthy, I., Maddury, S. R., Kerkar, P., Bansal, S., Thomas, J., Mandal, S. C., Mookerjee, S., Natarajan, S., Kumar, V., Chandra, N., Khan, A., Vijayakumar, R., & Sawhney, J. P. S. (2019). Heart rate in hypertension: Review and expert opinion. International Journal of Hypertension, 2019, 1–6. https://doi.org/10.1155/2019/2087064

Fuchs, F. D., & Whelton, P. K. (2020). High blood pressure and cardiovascular disease. Hypertension, 75(2), 285–292. https://doi.org/10.1161/HYPERTENSIONAHA.119.14240