ANCC FNP Exam Prep with Rationales Actual
Exam 2026/2027 – Complete Exam-Style
Questions with Detailed Rationales | 100%
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[SECTION 1: Assessment & Diagnosis — Questions 1-30]
Q1: A 55-year-old male presents for a routine physical. Upon auscultation of the heart, you hear
a mid-systolic click followed by a soft decrescendo murmur best heard at the apex. This finding
is most consistent with:
A. Aortic regurgitation.
B. Mitral stenosis.
C. Mitral valve prolapse.
D. Tricuspid regurgitation.
Correct Answer: C
Rationale: Mitral valve prolapse is classically associated with a mid-systolic click caused by the
sudden tensing of the chordae tendineae, followed by a murmur if regurgitation is present. Mitral
stenosis (B) typically presents with a rumbling diastolic murmur heard at the apex with radiation
to the axilla. Aortic regurgitation (A) presents as a diastolic decrescendo murmur heard at the left
sternal border. Tricuspid regurgitation (D) is best heard at the lower left sternal border.
Q2: During an abdominal examination, a patient reports pain when you lightly palpate the right
lower quadrant (RLQ). When you release your hand quickly, the patient reports increased sharp
pain. This is known as:
A. Blumberg’s sign.
B. Rovsing’s sign.
C. Psoas sign.
D. Obturator sign.
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Correct Answer: A
Rationale: Blumberg’s sign refers to rebound tenderness, where pain is felt more acutely upon
the sudden release of pressure from the abdomen, indicating peritoneal irritation. Rovsing’s sign
(B) is pain in the RLQ upon palpation of the left lower quadrant (LLQ). Psoas (C) and Obturator
(D) signs are used to assess for an appendicitis irritating the psoas muscle or obturator internus
muscle, respectively.
Q3: You are assessing a 68-year-old patient with sudden onset right-sided weakness. Which of
the following neurological findings would most strongly indicate an Upper Motor Neuron
(UMN) lesion?
A. Fasciculations.
B. Flaccid paralysis.
C. Hyperreflexia.
D. Muscle atrophy.
Correct Answer: C
Rationale: UMN lesions (e.g., stroke, spinal cord injury) typically present with spasticity,
weakness, and hyperreflexia (exaggerated deep tendon reflexes) due to the loss of inhibitory
input from the brain. Fasciculations (A) and flaccid paralysis (B) are signs of Lower Motor
Neuron (LMN) lesions (e.g., peripheral nerve injury). Muscle atrophy (D) is a late sign of both
but often more pronounced in LMN lesions initially.
Q4: A 14-year-old female presents with a painful "lump" in her breast that moves freely under
the skin and is tender. Which assessment finding is most reassuring that this is benign?
A. Dimpling of the skin over the mass.
B. Fixation of the mass to the chest wall.
C. Irregular borders of the mass.
D. Mobile, rubbery mass.
Correct Answer: D
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Rationale: A mobile, rubbery, and well-circumscribed mass in an adolescent female is
characteristic of a fibroadenoma, a benign breast tumor. Dimpling (A) can occur in both benign
and malignant masses. Fixation (B) and irregular borders (C) are suspicious signs of malignancy.
Q5: A patient presents with confusion, weight loss, and hyperpigmentation of the skin folds. You
suspect Addison’s disease (primary adrenal insufficiency). Which laboratory value would
confirm this diagnosis?
A. Increased sodium.
B. Decreased potassium.
C. Low morning cortisol.
D. Elevated fasting glucose.
Correct Answer: C
Rationale: Addison’s disease is characterized by the destruction of the adrenal cortex, leading to
insufficient cortisol and aldosterone production. A low morning cortisol level is a key diagnostic
indicator. Hyponatremia (low sodium) and hyperkalemia (high potassium) (B) are common due
to aldosterone deficiency, but cortisol testing is diagnostic.
Q6: When evaluating a patient for knee pain, you perform the McMurray test. A positive result is
indicated by:
A. Pain on compression of the patella.
B. Instability of the knee with valgus stress.
C. A palpable "click" or pain along the joint line during rotation.
D. Inability to extend the knee fully.
Correct Answer: C
Rationale: The McMurray test is used to assess for meniscal tears. A positive test is elicited by
flexing the knee and then extending it while rotating the foot; a click or pain along the joint line
suggests a torn meniscus. Option A describes the patellar grind test for chondromalacia. Option B
describes testing for collateral ligament injury.
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Q7: A 45-year-old patient presents with jaundice and right upper quadrant (RUQ) pain. An
abdominal ultrasound reveals gallstones but no obstruction of the common bile duct. The most
likely diagnosis is:
A. Biliary colic.
B. Acute cholecystitis.
C. Choledocholithiasis.
D. Hepatitis.
Correct Answer: A
Rationale: Biliary colic is caused by a gallstone temporarily obstructing the cystic duct, causing
pain. Acute cholecystitis (B) typically presents with fever, leukocytosis, and inflammation of the
gallbladder wall seen on ultrasound. Choledocholithiasis (C) involves obstruction of the common
bile duct, leading to jaundice and often cholangitis,.
Q8: Interpret the following arterial blood gas (ABG): pH 7.30, PaCO2 50 mmHg, HCO3- 24
mEq/L.
A. Respiratory acidosis with partial compensation.
B. Respiratory acidosis without compensation.
C. Metabolic acidosis with respiratory compensation.
D. Metabolic alkalosis with respiratory compensation.
Correct Answer: B
Rationale: The pH is low (acidosis), and the PaCO2 is high (respiratory component). The HCO3-
is on the low end of normal but has not shifted significantly to compensate (which would be a
decrease in HCO3- for respiratory acidosis). This indicates an acute respiratory acidosis.
Q9: A 25-year-old female presents with fatigue and pallor. Labs reveal: Hemoglobin 9 g/dL,
MCV 75 fL, Ferritin 8 ng/mL. What is the most likely diagnosis?
A. Vitamin B12 deficiency anemia.
B. Folate deficiency anemia.