D118 Unit 3 Study Guide
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Western Governors University
D118 Adult Primary Care for the Advanced Practice Nurse
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Date
D118 Unit 3 Study Guide
Managing In-Office Health Emergencies
What are the most commonly encountered office emergencies?
Family practice offices frequently encounter emergencies such as asthma exacerbations, anaphylaxis, shock, seizures, and cardiac arrest. These conditions demand swift recognition and immediate intervention to reduce the risk of serious complications or death. Recognizing early signs and having appropriate protocols ensures better patient outcomes in urgent situations (American Academy of Family Physicians, 2022).
What emergency supplies (equipment and medications) are recommended for family practice offices?
Recommended Emergency Equipment
| Equipment | Description |
|---|---|
| Intubation tools and AED | Crucial for airway management and cardiac arrest resuscitation |
| Bag mask ventilator | Comes in two sizes with three mask options for ventilation support |
| Blood pressure cuffs | Available in all sizes to accommodate different patient ages |
| Glucose meter | Enables rapid blood glucose measurement during hypoglycemia |
| Intraosseous needles | 18 and 16 gauge sizes for emergency vascular access |
| Intravenous catheters | Butterfly needles ranging from 24 to 18 gauge for IV therapy |
| IV extension tubing and T-connectors | Used to manage intravenous lines effectively |
| Nasal airway | Maintains airway patency in obstructed patients |
| Nasogastric tubes (NG tubes) | Used for gastrointestinal decompression |
| Nebulized and MDI spacers and face masks | Facilitate effective respiratory treatments |
| Non-rebreather mask | Delivers high-concentration oxygen |
| Oxygen mask | Provides supplemental oxygen |
| O2 tank and flow meter | Portable oxygen delivery system |
| Portable suction | Clears airway secretions |
| Pulse oximeter | Monitors oxygen saturation levels |
| Resuscitation tape (color-coded) | Helps rapidly assess vital signs |
| Universal precautions supplies | Infection control materials such as gloves and masks |
Recommended Emergency Medications
| Medication | Indication or Use |
|---|---|
| Acetaminophen | Manages pain and fever |
| Albuterol | Bronchodilator for asthma exacerbations |
| Aspirin | Antiplatelet therapy during cardiac events |
| Ceftriaxone | Antibiotic for various infections |
| Corticosteroids | Reduce inflammation, especially in allergic reactions |
| Dextrose 25% | Treats hypoglycemia |
| Diazepam (Valium) | Controls seizures and promotes muscle relaxation |
| Benadryl | Used for allergic reactions |
| Epinephrine (Epi) | First-line treatment for anaphylaxis and severe allergic reactions |
| Flumazenil | Reverses benzodiazepine overdose |
| Lorazepam | Seizure control |
| Morphine | Manages severe pain |
| Naloxone | Reverses opioid overdose |
| Nitroglycerine spray | Relieves chest pain (angina) |
| Normal saline | Fluid resuscitation during shock or dehydration |
Anaphylaxis
How is anaphylaxis clinically presented, examined, and treated?
Anaphylaxis presents with varying severity and may follow uniphasic or biphasic courses, sometimes occurring minutes after allergen exposure or delayed up to 10–12 hours. Protracted anaphylaxis can last from one to three days, manifesting symptoms ranging from mild rashes to life-threatening systemic reactions.
Clinical History and Assessment
A thorough history is essential and should include previous allergic reactions, underlying health conditions, recent travels, exposure to potential allergens (foods, drugs, insect stings), and current medications or supplements. Understanding symptom onset, duration, and severity guides clinical decisions.
Laboratory and Diagnostic Evaluation
Diagnostic tools include pulse oximetry to monitor oxygen levels, arterial blood gases (ABG), electrocardiograms (ECG), and serum glucose to exclude hypoglycemia. Specialized tests like plasma histamine and serum tryptase help confirm mast cell activation. Chest X-rays may be warranted if respiratory complications are suspected.
Treatment
Intramuscular epinephrine (0.2 to 0.5 mg), ideally administered into the lateral thigh, is the first-line treatment. Continuous monitoring of airway, breathing, and circulation (ABCs) is critical. Supportive care includes oxygen therapy and intravenous fluids if shock develops (Lieberman & Camargo, 2019).
Bites and Stings
What are the clinical presentation, examination findings, and treatments for bites and stings from animals, ticks, spiders, mosquitoes, and parasites?
Initial assessment prioritizes airway, breathing, and circulation, especially evaluating for anaphylaxis. The injury site should be inspected for severity and secondary infection.
Treatment Approach
Systemic reactions necessitate epinephrine administration. Local wound care includes removing stingers, cleansing with soap and water, applying ice, antihistamines to reduce itching, topical steroids to control inflammation, antibiotics to prevent infections, NSAIDs for pain relief, and eradicating the offending insect.
| Bite Type | Clinical Presentation | Treatment |
|---|---|---|
| Tick bites | Pruritic papule; risk of secondary infection | Remove tick with proper tool; antiseptic cleaning; antibiotics if Lyme disease suspected (tick attached >36 hours) |
| Bee stings | Localized pain to systemic allergic reactions | Local care, epinephrine if systemic; antihistamines; NSAIDs |
| Spider bites | Brown recluse: erythema to necrosis, systemic symptoms (fever, hemolysis) | Wound care, tetanus prophylaxis, antibiotics, surgical debridement if needed |
| Black widow: pain, erythema, muscle cramps, hypertension risk | Supportive care, pain control (narcotics, benzodiazepines), calcium gluconate; antivenom for severe cases | |
| Mosquito bites | Pruritic, painful papules | Symptomatic relief with antihistamines and local care |
| Animal bites | Variable; high infection risk | Wound cleaning, tetanus prophylaxis, antibiotics as indicated |
| Parasitic infestations | Symptoms vary based on parasite type | Specific antiparasitic treatment depending on diagnosis |
(Centers for Disease Control and Prevention, 2021; Blee & Mir, 2018)
Cardiac Arrhythmias
What are the clinical presentations, examinations, and management approaches for cardiac arrhythmias?
General Considerations
Emergencies require immediate hospital transport, especially for arrhythmias causing hemodynamic instability or myocardial ischemia. Cardiology referral is crucial for new or complex arrhythmias.
Tachyarrhythmias
Patients typically report palpitations, dizziness, syncope, or shortness of breath. Atrial fibrillation is commonly associated with fatigue due to irregular ventricular rates. Severe cases may present with hypotension, chest pain, or heart failure. Treatment focuses on stabilizing hydration, oxygen, electrolytes, and reducing stress. Antiarrhythmic drugs are tailored to individual needs (Zimetbaum & Josephson, 2017).
Bradyarrhythmias
Symptoms include fatigue, confusion, dizziness, and heart failure signs. Cognitive impairment like forgetfulness may occur. Management involves removing causative medications (e.g., beta blockers), using atropine to increase heart rate, and pacing if necessary. Referral to cardiology depends on symptom severity.
Physical Examination
Vital signs, mental status, respiratory effort, and signs like diaphoresis are evaluated. Orthostatic vitals help distinguish causes like dehydration or hypovolemia, which might provoke reflex tachycardia requiring urgent care.
Patient Hydration and Cardiovascular Assessment
Skin turgor and mucous membranes indicate hydration status. Neck inspection for jugular venous distension (JVD) suggests heart failure; carotid pulse palpation and auscultation detect abnormalities. Heart sounds and lung auscultation provide further clues to cardiac or pulmonary issues.
| Diagnostic Tool | Description |
|---|---|
| 12-lead ECG | Baseline heart electrical activity assessment |
| Holter Monitor | 24-hour ambulatory ECG to detect intermittent arrhythmias |
| Laboratory Tests | CBC, electrolytes, renal function, thyroid function (TSH) |
| Ankle-Brachial Index | Peripheral arterial disease screening |
| Echocardiography | Evaluates valve function and cardiac structure |
| Electrophysiologic Study | Invasive mapping of arrhythmia sources |
| Cardiac MRI | Detailed heart imaging using magnetic fields |
| Cardiac Catheterization | Visualization of coronary arteries and heart chambers |
| Stress Test | Assesses exercise-induced arrhythmias or ischemia |
| Event Monitor | Long-term rhythm tracking for infrequent symptoms |
| Tilt-Table Test | Assesses syncope due to autonomic dysfunction |
| Carotid Sinus Massage/Valsalva | Evaluates vagal effects on heart rhythm |
(UpToDate, 2024; Zimetbaum & Josephson, 2017)
Clinical Presentation and Treatment of Acute Bronchospasm
Patients with acute bronchospasm must be evaluated promptly, with urgent referral to emergency care if respiratory distress, low oxygen saturation (<92%), or poor response to nebulized treatments occurs. Symptoms include wheezing, chest tightness, cough, and breathlessness, ranging from mild to severe.
Treatment involves oxygen supplementation and inhaled short-acting beta2-agonists like albuterol. Anticholinergics (ipratropium bromide) and systemic corticosteroids (prednisone) may be added for enhanced control (American Academy of Family Physicians, 2022).
Managing Hypotension, Syncope, and Hypovolemic Shock
Hypotension results from disturbances in vascular tone, blood volume, or cardiopulmonary function. Evaluation includes vital signs, ECG, hemoglobin, electrolytes, and renal function tests. Pregnancy tests are essential in women of reproductive age to exclude ectopic pregnancy.
Syncope must be differentiated from seizures or altered consciousness due to other causes. It is categorized into neurally mediated, orthostatic, or cardiac origins. Diagnostic efforts focus on excluding life-threatening causes like ischemia, embolism, and arrhythmias. During an episode, the patient should lie supine with loosened clothing to prevent aspiration.
Management of hypovolemic shock prioritizes oxygen delivery, hemorrhage control, and fluid replacement (American College of Emergency Physicians, 2023).
Sepsis and Septic Shock: Risk Factors, Symptoms, and Management
Sepsis is a systemic inflammatory response to infection that can progress to septic shock and multi-organ dysfunction. Risk factors include immunosuppression, chronic illness, prosthetic devices, and advanced age.
Typical signs include fever, hypotension, tachypnea, leukocytosis, and elevated inflammatory markers like CRP. Treatment begins with airway and circulation support, fluid resuscitation guided by central venous pressure, and broad-spectrum antibiotics administered within the first hour. Tight glycemic control and corticosteroids may be added in select cases (American College of Emergency Physicians, 2023).
Phases of Emergency Management
The Federal Emergency Management Agency (FEMA) outlines four critical phases of emergency management:
- Mitigation: Implementing structural and policy measures to reduce disaster impact (e.g., fire safety protocols).
- Preparedness: Developing plans, stockpiling supplies, and training responders.
- Response: Immediate actions such as rescue, medical aid, and evacuation during a disaster.
- Recovery: Long-term restoration of infrastructure and community support to enhance future resilience (Federal Emergency Management Agency, n.d.).
Acute Illnesses of the Eye, Ear, Nose, and Throat (EENT)
Eye Disorders: Hordeolum, Blepharitis, and Chalazion
Anterior blepharitis involves the eyelid margin and is often linked to staphylococcal infection or seborrhea. Posterior blepharitis affects meibomian glands and may coexist with rosacea. Both conditions disrupt the ocular surface, increasing risk for hordeola or chalazia.
A hordeolum is an acute, painful infection characterized by eyelid erythema and swelling. If untreated, it may evolve into a chalazion—a chronic, painless granulomatous lesion.
Management centers on lid hygiene with warm compresses, gentle lid scrubs, antibiotic ointments such as erythromycin, and artificial tears for dryness (Mayo Clinic, 2023).
Conjunctivitis: Types and Management
| Type | Clinical Features | Management |
|---|---|---|
| Viral | Red eyes, watery discharge, conjunctival follicles | Supportive care; self-limited |
| Bacterial | Thick purulent discharge, sticky eyelids | Antibiotics if persistent |
| Allergic | Itching, clear discharge, periorbital changes (“allergic shiners”) | Antihistamines and avoidance of allergens |
| Vernal/Atopic | Intense itching, thick discharge, cobblestone papillae | Mast cell stabilizers, antihistamines |
Corneal Surface Defects and Foreign Bodies
Corneal abrasions, often caused by trauma or chemical exposure, present with severe pain, photophobia, redness, tearing, and blurred vision. Fluorescein staining with cobalt blue light is diagnostic. Eye protection is essential in prevention.
General Eye Examination Components
Eye examination includes assessment of visual acuity, pupil reaction, eyelid and conjunctival status, corneal clarity, anterior chamber depth, and detection of inflammation or injury. Urgent ophthalmology referral is warranted for signs like hypopyon, irregular pupils, or penetrating trauma (American Academy of Ophthalmology, 2024).
Eye Conditions Requiring Ophthalmology Referral
Referral is necessary for:
- Acute eye pain, vision loss, or severe photophobia
- Persistent conjunctivitis beyond one week
- Suspected herpetic infections
- Corneal abrasions complicated by infection or size
- Globe puncture injuries
Common Eye Conditions: Signs and Treatments
| Condition | Symptoms | Treatment |
|---|---|---|
| Pterygium | Conjunctival growth causing irritation | Referral if vision impaired |
| Subconjunctival hemorrhage | Bright red patch under conjunctiva | Usually self-limited |
| Pinguecula | Yellow conjunctival nodule | Usually no treatment needed |
| Dry Eye Syndrome | Burning, foreign body sensation | Artificial tears, lid hygiene |
| Dacryostenosis | Tear duct obstruction | Referral for surgical intervention |
| Xanthelasma | Yellow plaques on eyelids | Cosmetic removal if desired |
| Periorbital Cellulitis | Eyelid swelling, erythema, pain | Antibiotics, urgent referral |
| Iritis | Eye pain, photophobia, blurred vision | Corticosteroids, urgent referral |
| Angle Closure Glaucoma | Severe eye pain, halos, nausea, vision loss | Emergency pressure-lowering treatment |
| Cataracts | Gradual vision loss | Surgical removal |
Common ENT Conditions: Clinical Features and Management
- Tinnitus: Ringing or buzzing; managed by removing ototoxic drugs, hearing aids, and cognitive therapies.
- Otitis Externa: Ear canal pain and swelling; treated with topical antibiotics and analgesics.
- Otitis Media: Ear pain and fever; antibiotics and pain relief standard; complications require special care.
- Otitis Media with Effusion: Hearing loss and fullness; usually self-limited, sometimes nasal steroids or antihistamines are used.
- Allergic Rhinitis: Nasal itching, sneezing, congestion; antihistamines and nasal steroids are effective.
- Acute Bacterial Rhinosinusitis: Facial pain and purulent nasal discharge; treated with antibiotics.
- Chronic Rhinosinusitis, Pharyngitis, Influenza: Require symptom management and targeted therapies.
(Centers for Disease Control and Prevention, 2023; National Institutes of Health, 2023)
Ophthalmology Same-Day Care Indications
Urgent ophthalmology referral is needed for acute eye pain, sudden vision changes, trauma, or severe infection risks.
Ocular Foreign Body Removal: Procedure and Precautions
Use fluorescein staining to identify abrasions or foreign bodies. Topical anesthetic drops are applied cautiously, and eyelid eversion is performed to detect hidden foreign bodies. Following removal, the eye is irrigated, and follow-up care is scheduled to prevent complications.
Ear Foreign Body Removal: Indications and Procedure
Foreign objects in the ear canal must be carefully removed to avoid injury. Contraindications include recent ear surgery or tympanostomy tubes. If the foreign body is vegetable matter, avoid water exposure to prevent swelling. The procedure involves gentle extraction with patient comfort monitoring.
Cerumen Disimpaction and Tympanometry
Cerumen removal is indicated when blockage causes hearing loss or discomfort. Tympanometry assesses middle ear function but is contraindicated in infants or active infections.
Audiometry and Nasal Procedures: Emergency Considerations
Audiometry evaluates hearing loss. Urgent ENT consultation is necessary for periorbital edema, diplopia, severe nosebleeds, or neurological signs.
Nasal Packing and Foreign Body Removal in the Nose
Nasal packing manages severe epistaxis, while foreign body removal requires proper technique to avoid trauma and complications.
Dental Trauma: Post-Tooth Avulsion or Fracture Management
Avoid handling teeth if facial fractures or socket lacerations are suspected. Preserve avulsed teeth in media such as milk or saline. Immediate referral to dental specialists is essential for optimal outcomes.
References
American Academy of Family Physicians. (2022). Clinical guidelines for in-office emergencies and management of acute illnesses.
American Academy of Family Physicians. (2020). Office-based emergency preparedness. Retrieved from [AAFP resources]
American Academy of Ophthalmology. (2024). Corneal abrasions and foreign bodies.
American College of Emergency Physicians. (2023). Sepsis and septic shock management guidelines.
Blee, T., & Mir, M. (2018). Management of black widow and brown recluse spider bites. Emergency Medicine Clinics, 36(2), 355–368.
Centers for Disease Control and Prevention. (2021). Tickborne diseases of the United States. https://www.cdc.gov/ticks/diseases/index.html
Centers for Disease Control and Prevention. (2023). Management of otitis media and otitis externa.
Federal Emergency Management Agency. (n.d.). Emergency management phases. FEMA.gov.
Lieberman, P., & Camargo, C. A. (2019). Anaphylaxis: Clinical aspects and diagnosis. The Journal of Allergy and Clinical Immunology, 144(3), 594–602. https://doi.org/10.1016/j.jaci
Mayo Clinic. (2023). Eye conditions: Diagnosis and treatment.
D118 Unit 3 Study Guide
National Institutes of Health. (2023). Allergic rhinitis and sinusitis: Diagnosis and treatment.
UpToDate. (2024). Cardiac arrhythmias: Diagnosis and management.
Zimetbaum, P., & Josephson, M. E. (2017). Evaluation and management of arrhythmias. Circulation, 135(3), 258–276.