Answers & Rationales | Family Nurse Practitioner Exam
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SECTION 1: ADVANCED HEALTH ASSESSMENT & DIAGNOSTIC
REASONING (Q1–25)
Q1. A 58-year-old male presents with acute-onset tearing chest pain radiating to the
back. BP is 168/94 mmHg in the right arm and 118/76 mmHg in the left arm. Heart
sounds are normal. What is the most appropriate next step?
A. Obtain chest X-ray
B. Obtain CT angiography of the chest
C. Start IV heparin and obtain ECG
D. Administer sublingual nitroglycerin and reassess in 15 minutes
Correct Answer: B
Rationale: The presentation of tearing chest pain with unequal upper extremity
blood pressures (pulsus differential) is classic for thoracic aortic dissection, a "can't
miss" diagnosis requiring emergent CT angiography for definitive diagnosis. Chest X-
ray may show mediastinal widening but is insufficiently sensitive. IV heparin is
contraindicated in dissection due to risk of bleeding. Nitroglycerin does not address
the underlying pathology and may worsen hypotension if the patient develops
tamponade. Per 2026 ACC/AHA guidelines, CT angiography is the gold standard for
suspected acute aortic syndrome.
Q2. A 72-year-old female with a history of hypertension presents with sudden-onset
right-sided weakness and aphasia. On exam, she has right facial droop, right arm
,drift, and slurred speech. NIHSS is 14. She was last known well 2.5 hours ago. What is
the priority intervention?
A. Obtain non-contrast head CT immediately
B. Start IV tissue plasminogen activator (tPA) immediately
C. Administer aspirin 325 mg orally
D. Arrange emergent carotid endarterectomy
Correct Answer: A
Rationale: The first step in suspected acute ischemic stroke is emergent non-
contrast head CT to exclude hemorrhage before considering thrombolytic therapy. IV
tPA (B) is indicated only after hemorrhage is excluded and within 4.5 hours of last
known well, but imaging must precede administration. Aspirin (C) is given within 24–
48 hours after imaging excludes hemorrhage but is not the immediate priority.
Carotid endarterectomy (D) is considered for secondary prevention in selected
patients, not acute management. Per AHA/ASA 2026 stroke guidelines, "time is
brain"—door-to-CT should be <25 minutes.
Q3. A 45-year-old female presents with severe headache, photophobia, and neck
stiffness. Temperature is 102.4°F. She is confused and lethargic. What is the priority
diagnostic test?
A. Lumbar puncture with CSF analysis
B. CT head without contrast
C. MRI brain with and without contrast
D. Blood cultures and empiric antibiotics
Correct Answer: B
Rationale: In suspected bacterial meningitis with altered mental status (confusion,
lethargy), CT head without contrast must precede lumbar puncture to exclude mass
effect or herniation risk. LP (A) is the definitive diagnostic test but should not be
performed first if mental status is altered. MRI (C) is too time-consuming for acute
bacterial meningitis. Blood cultures and empiric antibiotics (D) should be started
immediately after blood cultures are drawn and ideally within 30 minutes, but CT
should not be delayed if indicated. Per IDSA 2026 meningitis guidelines, CT before LP
,is indicated for immunocompromised, history of CNS disease, papilledema, altered
consciousness, or focal neurologic deficit.
Q4. A 62-year-old male with COPD presents with worsening dyspnea, productive
cough with purulent sputum, and fever. He is on home oxygen at 2 L/min. On exam,
he is tachypneic with diffuse wheezing and rhonchi. SpO2 is 88% on 2 L. Which
antibiotic regimen is most appropriate?
A. Azithromycin monotherapy
B. Amoxicillin-clavulanate
C. Levofloxacin
D. Doxycycline
Correct Answer: C
Rationale: This patient has an acute COPD exacerbation with all three Anthonisen
criteria (increased dyspnea, increased sputum volume, increased sputum purulence),
indicating need for antibiotic therapy. Per GOLD 2026 guidelines, a respiratory
fluoroquinolone (levofloxacin) or amoxicillin-clavulanate is appropriate for moderate-
severe exacerbations requiring hospitalization or in patients with risk factors for
Pseudomonas (recent hospitalization, frequent antibiotics, severe COPD).
Azithromycin (A) is used for prophylaxis in select severe COPD patients, not acute
exacerbation. Doxycycline (D) is an alternative for mild exacerbations without risk
factors. Amoxicillin-clavulanate (B) is reasonable but levofloxacin provides broader
coverage including atypical organisms and some Pseudomonas coverage.
Q5. A 35-year-old female presents with acute low back pain radiating down the left
leg, worse with sitting and Valsalva. She has decreased sensation over the lateral left
foot and weakness with left great toe extension (4/5 strength). Straight leg raise is
positive at 30° on the left. What is the most likely diagnosis?
A. Lumbar spinal stenosis
B. Cauda equina syndrome
, C. L5 radiculopathy due to herniated nucleus pulposus
D. Piriformis syndrome
Correct Answer: C
Rationale: The presentation of acute radicular pain with positive straight leg raise,
dermatomal sensory loss (lateral foot = L5), and motor weakness (great toe extension
= L5) is classic for L5 radiculopathy from herniated nucleus pulposus. Spinal stenosis
(A) typically presents in older adults with neurogenic claudication, not acute
radiculopathy. Cauda equina syndrome (B) is a "can't miss" diagnosis requiring
emergent MRI; red flags include saddle anesthesia, bilateral symptoms, and
bowel/bladder dysfunction—none of which are present here. Piriformis syndrome (D)
does not typically cause dermatomal sensory changes or objective motor weakness.
Per ACP 2026 low back pain guidelines, MRI is indicated if red flags are present or
symptoms persist >6 weeks with conservative management.
Q6. A 28-year-old female presents with acute-onset right lower quadrant pain,
nausea, and vomiting. Last menstrual period was 6 weeks ago. Urine pregnancy test
is positive. On exam, she has right adnexal tenderness with cervical motion
tenderness. BP is 96/62 mmHg, HR 118 bpm. What is the priority intervention?
A. Obtain transvaginal ultrasound
B. Start IV fluids and obtain quantitative β-hCG
C. Initiate methotrexate therapy
D. Arrange emergent laparoscopy
Correct Answer: A
Rationale: This patient has signs of ruptured ectopic pregnancy (positive pregnancy
test, unilateral pain, adnexal tenderness, hypotension, tachycardia), a "can't miss"
obstetric emergency. Transvaginal ultrasound is the priority to confirm intra- vs
extrauterine pregnancy and assess for hemoperitoneum. IV fluids and β-hCG (B) are
important supportive measures but do not establish the diagnosis. Methotrexate (C)
is contraindicated in hemodynamically unstable patients or if rupture is suspected.
Laparoscopy (D) may be necessary but imaging should precede surgical intervention
unless the patient is in extremis. Per ACOG 2026 guidelines, TVUS can detect ectopic