Comprehensive Question Bank with
Verified 100% Correct Answers, In-Depth
Clinical Rationales, and Evidence-Based
Explanations for Advanced Practice
Nursing Students Preparing for the APEA
3P Predictor and Proctored
Question 1
A 55-year-old patient presents with progressive dyspnea on exertion, a
non-productive cough, and digital clubbing. Pulmonary function tests show a
restrictive pattern with reduced DLCO. Which diagnosis is most likely?
A) Chronic obstructive pulmonary disease
B) Idiopathic pulmonary fibrosis
C) Asthma
D) Sarcoidosis
Correct ,,,answer,,,: B
Rationale: Idiopathic pulmonary fibrosis presents with progressive dyspnea, dry
cough, and clubbing. Restrictive pattern and reduced diffusing capacity are
hallmark findings. COPD shows obstructive pattern; sarcoidosis often has hilar
adenopathy.
,Question 2
A patient with type 2 diabetes mellitus develops acute flank pain, hematuria, and
fever. Urinalysis shows white blood cell casts. What is the most likely diagnosis?
A) Acute cystitis
B) Acute pyelonephritis
C) Nephrolithiasis
D) Glomerulonephritis
Correct ,,,answer,,,: B
Rationale: Acute pyelonephritis presents with fever, flank pain, and WBC casts in
urine. Cystitis lacks flank pain and casts; nephrolithiasis typically shows RBCs
without infection; glomerulonephritis presents with proteinuria and RBC casts.
Question 3
A 72-year-old male has a history of hypertension and presents with a sudden,
severe headache, nausea, and vomiting. Blood pressure is 220/120 mmHg.
Neurological exam shows no focal deficits. Which condition is most likely?
A) Subarachnoid hemorrhage
B) Hypertensive encephalopathy
C) Ischemic stroke
D) Migraine with aura
Correct ,,,answer,,,: B
Rationale: Hypertensive encephalopathy occurs with malignant hypertension,
causing headache, nausea, vomiting, and altered mental status without focal
,neurologic signs. Subarachnoid hemorrhage often presents with “worst headache
of life” and may have meningismus.
Question 4
A patient with chronic kidney disease has a serum calcium of 8.2 mg/dL,
phosphorus of 5.5 mg/dL, and PTH of 180 pg/mL. What is the most likely underlying
mechanism?
A) Primary hyperparathyroidism
B) Secondary hyperparathyroidism due to renal failure
C) Vitamin D intoxication
D) Malignancy-associated hypercalcemia
Correct ,,,answer,,,: B
Rationale: In renal failure, decreased GFR leads to phosphate retention and
decreased calcitriol production, causing hypocalcemia and secondary
hyperparathyroidism. PTH is elevated, calcium low, phosphorus high.
Question 5
A young woman presents with episodic palpitations, diaphoresis, and headache.
During an episode, blood pressure is 190/110 mmHg. Which diagnostic test is most
definitive?
A) Serum metanephrines
B) Plasma free metanephrines
C) 24-hour urinary catecholamines
D) CT scan of the adrenal glands
, Correct ,,,answer,,,: B
Rationale: Plasma free metanephrines are the most sensitive and specific test for
pheochromocytoma. 24-hour urine catecholamines are also used, but plasma
metanephrines have higher sensitivity. CT confirms the tumor after biochemical
diagnosis.
Question 6
A patient with cirrhosis develops confusion, asterixis, and hyperammonemia.
Which medication is most appropriate to reduce ammonia levels?
A) Spironolactone
B) Lactulose
C) Furosemide
D) Omeprazole
Correct ,,,answer,,,: B
Rationale: Lactulose acidifies the gut, converting ammonia to ammonium ion,
which is excreted in stool. It is the first-line treatment for hepatic encephalopathy.
Question 7
A 60-year-old female has a positive stool occult blood test and iron-deficiency
anemia. She reports no gastrointestinal symptoms. What is the most appropriate
next step?
A) Upper endoscopy
B) Colonoscopy