Family Nurse Practitioner (FNP) Barkley Post-Test Fall 2025 Comprehensive Final Exam with Verified Rationales Practice Questions and Answers 2026 with complete solution

Family Nurse Practitioner (FNP) Barkley Post-Test Fall 2025 Comprehensive Final Exam with Verified Rationales Practice Questions and Answers 2026 with complete solution Comprehensive Final Exam with Verified Rationales Practice Questions and Answers 2026 with complete solution Exam Structure Section Questions Topics Covered Section 1 Q1–Q20 Cardiology & Vascular Section 2 Q21–Q40 Pulmonology Section 3 Q41–Q60 Endocrinology & Metabolism Section 4 Q61–Q80 Gastroenterology & Nutrition Section 5 Q81–Q100 Neurology & Psychiatry Section 6 Q101–Q120 Women’s Health & Reproductive Section 7 Q121–Q135 Pediatrics & Developmental Section 8 Q136–Q150 Musculoskeletal & Dermatology Section 1: Cardiology & Vascular Q1. A 58-year-old male with a 30-pack-year smoking history presents with exertional chest pressure that radiates to his left jaw. The pain is relieved with rest within 5–10 minutes. His ECG shows ST-segment depression during exercise stress testing. Which of the following is the most appropriate initial medical therapy? · A) Aspirin 81 mg daily plus sublingual nitroglycerin as needed · B) Warfarin 5 mg daily with INR monitoring · C) Amiodarone 200 mg twice daily · D) Digoxin 0.25 mg daily Correct Answer: A) Aspirin 81 mg daily plus sublingual nitroglycerin as needed Rationale: 1. This patient has stable angina pectoris as evidenced by exertional symptoms relieved by rest and ischemic ECG changes on stress testing. 2. Initial medical management for stable angina includes antiplatelet therapy (aspirin) to reduce thrombotic risk and sublingual nitroglycerin for acute symptom relief. 3. Beta-blockers and statins are also first-line; however, among the options provided, aspirin plus nitroglycerin is the correct initial combination. 4. Warfarin is not indicated without atrial fibrillation or mechanical valves; amiodarone and digoxin are not appropriate for stable angina. Q2. A 72-year-old female with a history of hypertension and type 2 diabetes presents with sudden onset of severe, tearing chest pain radiating to her back. Her blood pressure is 180/110 mmHg in the right arm and 130/80 mmHg in the left arm. Which of the following is the most likely diagnosis? · A) Acute myocardial infarction · B) Pulmonary embolism · C) Aortic dissection · D) Pericarditis Correct Answer: C) Aortic dissection Rationale: 1. Aortic dissection classically presents with sudden, severe, tearing chest pain that radiates to the back. 2. Asymmetric blood pressure between arms is a hallmark finding due to differential involvement of the subclavian arteries. 3. Risk factors include hypertension, connective tissue disorders, and atherosclerosis. 4. Acute coronary syndrome typically presents with pressure-type pain, and pulmonary embolism presents with pleuritic pain and hypoxia; pericarditis pain is positional and relieved by leaning forward. Q3. A 45-year-old obese female presents with episodes of palpitations, diaphoresis, and a pounding headache. Her blood pressure is 210/120 mmHg. Laboratory studies show elevated plasma metanephrines. Which of the following is the most appropriate definitive treatment? · A) Alpha-blockade followed by surgical resection · B) Beta-blocker monotherapy · C) ACE inhibitor therapy · D) Calcium channel blocker therapy Correct Answer: A) Alpha-blockade followed by surgical resection Rationale: 1. This patient has a pheochromocytoma, a catecholamine-secreting tumor of the adrenal medulla, confirmed by elevated plasma metanephrines. 2. Definitive treatment is surgical resection; however, preoperative alpha-blockade (e.g., phenoxybenzamine) is mandatory to prevent hypertensive crisis during manipulation. 3. Beta-blockers should never be used alone without alpha-blockade as this can precipitate unopposed alpha-receptor stimulation and severe hypertension. 4. ACE inhibitors and calcium channel blockers are not definitive therapies for pheochromocytoma. Q4. A 68-year-old male with chronic heart failure (NYHA Class III) presents with worsening dyspnea, peripheral edema, and jugular venous distension. His ejection fraction is 25%. Which of the following medication classes has been shown to reduce mortality in this patient population? · A) Calcium channel blockers · B) Beta-blockers (carvedilol, metoprolol succinate) · C) Alpha-1 antagonists · D) Non-dihydropyridine calcium channel blockers Correct Answer: B) Beta-blockers (carvedilol, metoprolol succinate) Rationale: 1. In patients with heart failure with reduced ejection fraction (HFrEF), beta-blockers (carvedilol, metoprolol succinate, bisoprolol) significantly reduce mortality and hospitalizations. 2. These agents reverse the adverse effects of chronic sympathetic activation in heart failure. 3. Calcium channel blockers (especially non-dihydropyridine) are generally avoided in HFrEF due to negative inotropic effects. 4. Alpha-1 antagonists are not mortality-reducing agents in heart failure. Q5. A 55-year-old male with a history of atrial fibrillation presents with acute onset of unilateral lower extremity swelling, pain, and warmth. His leg is pale and cool to the touch. Which of the following is the most appropriate initial diagnostic study? · A) Duplex ultrasound of the lower extremity · B) CT angiography of the lower extremity · C) MRI of the lower extremity · D) Plain radiography of the lower extremity Correct Answer: B) CT angiography of the lower extremity Rationale: 1. This patient presents with acute limb ischemia (pale, cool, painful leg) in the setting of atrial fibrillation (embolic source). 2. CT angiography is the gold standard for rapid diagnosis of arterial occlusion and guides emergent intervention. 3. Duplex ultrasound is the study of choice for venous thrombosis (DVT) but not for acute arterial ischemia. 4. MRI is time-consuming and not readily available for emergencies; plain radiography has no role in diagnosing vascular occlusion. Q6. A 62-year-old female presents with dyspnea on exertion, fatigue, and a systolic ejection murmur heard best at the right upper sternal border that radiates to the carotids. Echocardiography shows a peak gradient of 55 mmHg across the aortic valve. Which of the following is the most appropriate definitive treatment? · A) Aortic valve replacement · B) Beta-blocker therapy · C) ACE inhibitor therapy · D) Antibiotic prophylaxis Correct Answer: A) Aortic valve replacement Rationale: 1. This patient has severe aortic stenosis as evidenced by a peak gradient 40 mmHg and classic symptoms (dyspnea, fatigue, angina). 2. Definitive treatment for severe symptomatic aortic stenosis is surgical or transcatheter aortic valve replacement. 3. Medical management is palliative and does not address the underlying valvular obstruction. 4. Antibiotic prophylaxis is only indicated for certain high-risk patients undergoing invasive procedures, not as a definitive treatment. Q7. A 48-year-old male with no significant past medical history presents with sudden onset of palpitations, chest discomfort, and lightheadedness. His ECG shows a regular, narrow-complex tachycardia at 180 bpm with no visible P waves. Which of the following is the most appropriate initial management? · A) Immediate synchronized cardioversion · B) Adenosine 6 mg IV push · C) Amiodarone 150 mg IV · D) Lidocaine 100 mg IV Correct Answer: B) Adenosine 6 mg IV push Rationale: 1. The ECG findings are consistent with supraventricular tachycardia (SVT) with a regular, narrow-complex rhythm at 180 bpm. 2. Adenosine is the first-line agent for stable SVT as it transiently blocks AV nodal conduction and terminates re-entrant tachycardias. 3. Immediate cardioversion is indicated for unstable patients with hemodynamic compromise. 4. Amiodarone and lidocaine are not first-line for narrow-complex tachycardias. Q8. A 60-year-old female with hypertension and hyperlipidemia presents with a painless, pulsatile abdominal mass. Ultrasound reveals an infrarenal aortic diameter of 5.2 cm. Which of the following is the most appropriate management? · A) Surgical repair with open or endovascular approach · B) Annual ultrasound surveillance · C) Initiation of oral anticoagulation · D) Lifestyle modification and statin therapy alone Correct Answer: A) Surgical repair with open or endovascular approach Rationale: 1. An abdominal aortic aneurysm (AAA) ≥5.5 cm in men or ≥5.0 cm in women has a significantly increased risk of rupture and warrants surgical intervention. 2. This patient’s AAA is 5.2 cm, which exceeds the threshold for repair in females. 3. Surveillance is appropriate for smaller aneurysms (3.0–4.4 cm). 4. Anticoagulation is not indicated and does not prevent aneurysm progression; lifestyle modification and statins are adjunctive but not definitive. Q9. A 70-year-old male presents with bilateral calf pain with walking that is relieved by rest. He has diminished dorsalis pedis pulses bilaterally and a femoral bruit. Which of the following is the most appropriate initial diagnostic study? · A) Ankle-brachial index (ABI) · B) Coronary angiography · C) Venous duplex ultrasound · D) Echocardiography Correct Answer: A) Ankle-brachial index (ABI) Rationale: 1. This patient has classic symptoms of peripheral arterial disease (PAD): claudication with rest relief and diminished pulses. 2. ABI is the initial, noninvasive diagnostic test for PAD. An ABI ≤0.90 is diagnostic. 3. Coronary angiography is not indicated for peripheral symptoms. 4. Venous duplex ultrasound is used for venous insufficiency/DVT; echocardiography is for cardiac evaluation. Q10. A 52-year-old female presents with episodes of chest pain at rest, occurring in the early morning hours. ECG shows transient ST-segment elevation during episodes. Cardiac enzymes are normal. Which of the following is the most likely diagnosis? · A) Stable angina · B) Unstable angina · C) Prinzmetal’s (variant) angina · D) Acute myocardial infarction Correct Answer: C) Prinzmetal’s (variant) angina Rationale: 1. Prinzmetal’s angina is characterized by chest pain at rest (often early morning) due to coronary artery vasospasm. 2. Transient ST-segment elevation during episodes with normal cardiac enzymes is classic. 3. Stable angina is exertional; unstable angina occurs with increasing frequency/severity; MI would have elevated cardiac enzymes. 4. Treatment includes calcium channel blockers and nitrates; beta-blockers may worsen vasospasm. Q11. A 65-year-old male with a history of coronary artery disease presents with progressive shortness of breath and orthopnea. On examination, he has crackles at both lung bases, an S3 gallop, and jugular venous distension. Which of the following is the most appropriate medication to improve symptoms and reduce mortality? · A) Spironolactone · B) Furosemide · C) Hydralazine · D) Dobutamine Correct Answer: A) Spironolactone Rationale: 1. This patient has acute decompensated heart failure (ADHF) with signs of fluid overload and S3 gallop. 2. In patients with HFrEF, spironolactone (an aldosterone antagonist) reduces mortality and hospitalizations when added to standard therapy. 3. Furosemide improves symptoms (diuresis) but does not reduce mortality. 4. Hydralazine is used in specific populations; dobutamine is for acute severe decompensation. Q12. A 55-year-old male presents with syncope and palpitations. His ECG reveals a prolonged QT interval (QTc = 510 ms). He reports recent initiation of an antibiotic for bronchitis. Which of the following antibiotics is most likely responsible? · A) Azithromycin · B) Amoxicillin · C) Cephalexin · D) Doxycycline Correct Answer: A) Azithromycin Rationale: 1. Azithromycin is a macrolide antibiotic known to prolong the QT interval by blocking cardiac potassium channels (hERG). 2. Prolonged QT increases the risk of torsades de pointes, especially in patients with baseline QT prolongation or electrolyte abnormalities. 3. Amoxicillin, cephalexin, and doxycycline are not classically associated with significant QT prolongation. 4. Other QT-prolonging antibiotics include fluoroquinolones and other macrolides. Q13. A 48-year-old female presents with hypertension that is difficult to control despite three antihypertensive medications (including a diuretic). She has hypokalemia (K = 3.1 mEq/L) and metabolic alkalosis. Which of the following is the most likely underlying diagnosis? · A) Pheochromocytoma · B) Cushing’s syndrome · C) Primary aldosteronism · D) Renal artery stenosis Correct Answer: C) Primary aldosteronism Rationale: 1. Primary aldosteronism is characterized by hypertension, hypokalemia, and metabolic alkalosis due to excess aldosterone secretion. 2. Aldosterone causes sodium retention (hypertension) and potassium wasting (hypokalemia) with bicarb retention (alkalosis). 3. Pheochromocytoma causes episodic hypertension and catecholamine symptoms; Cushing’s causes hyperglycemia and cushingoid features; renal artery stenosis presents with flash pulmonary edema and/or refractory hypertension but not classic hypokalemia. 4. The aldosterone-to-renin ratio (ARR) is the initial screening test. Q14. A 70-year-old male with atrial fibrillation and a CHA₂DS₂-VASc score of 5 is started on warfarin. His INR is 1.5 after one week on 5 mg daily. Which of the following is the most appropriate next step? · A) Increase warfarin dose to 7.5 mg daily · B) Discontinue warfarin and start apixaban · C) Continue same dose and recheck INR in one month · D) Administer vitamin K 5 mg orally Correct Answer: A) Increase warfarin dose to 7.5 mg daily Rationale: 1. Warfarin initiation requires dose titration to achieve a therapeutic INR of 2.0–3.0 for atrial fibrillation. 2. An INR of 1.5 is subtherapeutic; the dose should be increased. The standard approach is to increase by 10–20% of the weekly dose. 3. Switching to a DOAC is an option but not “next step” after just one week; the patient has not been adequately dosed. 4. Continuing the same dose without adjustment is inappropriate; vitamin K would lower the INR further and is only indicated for bleeding or significant over-anticoagulation. Q15. A 60-year-old female with a history of mitral valve prolapse presents with palpitations and a holosystolic murmur at the apex that radiates to the axilla. Echocardiography reveals mitral regurgitation. Which of the following is the most common cause of mitral regurgitation in this population? · A) Rheumatic heart disease · B) Myxomatous degeneration · C) Infective endocarditis · D) Ischemic heart disease Correct Answer: B) Myxomatous degeneration Rationale: 1. Myxomatous degeneration of the mitral valve is the most common cause of mitral valve prolapse (MVP) and associated mitral regurgitation. 2. In MVP, there is excess connective tissue with thickening and redundancy of the valve leaflets. 3. Rheumatic heart disease is a cause of mitral stenosis more commonly than regurgitation in developing countries. 4. Infective endocarditis can cause acute MR but is not the most common; ischemic MR results from papillary muscle dysfunction.