AANP CERTIFIED NURSE PRACTITIONER
(CNP) PRACTICE EXAM 1 QUESTIONS
AND CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES 2025
- Which of the following medications is the first-line treatment for
- Lisinopril
- Hydrochlorothiazide
- Atenolol
- Losartan
uncomplicated hypertension in an African American patient without chronic kidney disease?
Answer: B) Hydrochlorothiazide
Rationale: Thiazide diuretics (like hydrochlorothiazide) and calcium channel
blockers are preferred first-line treatments for hypertension in African American patients without CKD, per JNC 8 guidelines.
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- A 25-year-old female presents with dysuria and urinary frequency. Which test
- Urine culture
- Urinalysis with dipstick
- Serum creatinine
- Abdominal ultrasound
is most appropriate to confirm a urinary tract infection?
Answer: B) Urinalysis with dipstick
Rationale: Urinalysis with dipstick is the initial, rapid test for UTI diagnosis, identifying leukocyte esterase and nitrites indicating infection.
- Which vaccine is contraindicated in pregnancy?
- Influenza (inactivated)
- Tetanus, diphtheria, and pertussis (Tdap)
- MMR (measles, mumps, rubella)
- Hepatitis B
Answer: C) MMR (measles, mumps, rubella)
Rationale: MMR is a live attenuated vaccine and contraindicated in pregnancy
due to risk of fetal harm.
- A patient presents with crushing chest pain radiating to the left arm. Which is
- Administer aspirin
- Order a chest X-ray 2 / 3
the most important immediate intervention?
- Start IV fluids
- Provide nitroglycerin
Answer: A) Administer aspirin
Rationale: Aspirin reduces platelet aggregation and mortality in suspected
myocardial infarction and should be given immediately unless contraindicated.
- Which lab value indicates diabetic ketoacidosis (DKA)?
- Serum glucose 120 mg/dL
- Serum bicarbonate 18 mEq/L
- Serum pH 7.25
- Serum potassium 3.0 mEq/L
Answer: C) Serum pH 7.25
Rationale: Acidosis (pH <7.3), hyperglycemia, and low bicarbonate are
characteristic of DKA.
- What is the recommended screening age for colon cancer in average-risk
- 40 years
- 45 years
- 50 years
- 55 years
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adults?