ANCC Family Nurse Practitioner (FNP-BC) Board
Certification Exam | Complete Practice Questions,
Verified Answers & Detailed Rationales (2026/2027)
QUESTION 1
A 45-year-old patient presents with chronic heartburn and is diagnosed
with Barrett's esophagus. The nurse practitioner recognizes that this
condition involves which cellular adaptation?
A. Atrophy of the lower esophageal sphincter
B. Metaplasia of the squamous epithelium to columnar epithelium
C. Dysplasia of the gastric mucosa
D. Hyperplasia of the esophageal smooth muscle
Correct Answer: B. Metaplasia of the squamous epithelium to columnar
epithelium
Rationale: Barrett's esophagus is a classic example of metaplasia where
chronic acid exposure causes stratified squamous epithelium to be
replaced by columnar epithelium.
QUESTION 2
Which neurotransmitter deficiency is primarily implicated in the
pathophysiology of Parkinson's disease?
A. Serotonin
,B. Acetylcholine
C. Dopamine
D. Norepinephrine
Correct Answer: C. Dopamine
Rationale: Parkinson's disease is characterized by the degeneration of
dopaminergic neurons in the substantia nigra pars compacta, leading to
a deficiency of dopamine in the basal ganglia.
QUESTION 3
A patient with type 2 diabetes mellitus is prescribed metformin. Which
mechanism of action is primarily responsible for the therapeutic effect
of this medication?
A. Stimulation of insulin secretion from pancreatic beta cells
B. Inhibition of hepatic glucose production and enhancement of insulin
sensitivity
C. Delaying the digestion and absorption of carbohydrates in the small
intestine
D. Increasing renal glucose excretion through SGLT2 inhibition
Correct Answer: B. Inhibition of hepatic glucose production and
enhancement of insulin sensitivity
Rationale: Metformin is a biguanide that primarily works by decreasing
hepatic gluconeogenesis and improving peripheral glucose uptake and
insulin sensitivity.
,QUESTION 4
During a routine physical examination, a 60-year-old male has a blood
pressure reading of 142/92 mmHg on two separate occasions.
According to current guidelines, how should the nurse practitioner
classify this blood pressure?
A. Elevated
B. Stage 1 Hypertension
C. Stage 2 Hypertension
D. Hypertensive Crisis
Correct Answer: C. Stage 2 Hypertension
Rationale: Stage 2 hypertension is defined as a systolic blood pressure
of 140 mmHg or higher or a diastolic blood pressure of 90 mmHg or
higher.
QUESTION 5
A 28-year-old female presents with fatigue, weight gain, constipation,
and cold intolerance. Laboratory results reveal an elevated TSH and a
low free T4. What is the most likely diagnosis?
A. Graves disease
B. Hashimoto thyroiditis
C. Subacute thyroiditis
D. Toxic multinodular goiter
, Correct Answer: B. Hashimoto thyroiditis
Rationale: Hashimoto thyroiditis is the most common cause of primary
hypothyroidism, presenting with elevated TSH, low free T4, and typical
hypothyroid symptoms.
QUESTION 6
Which diagnostic test is considered the gold standard for confirming a
diagnosis of systemic lupus erythematosus (SLE)?
A. Anti-nuclear antibody (ANA) test
B. Anti-double-stranded DNA (anti-dsDNA) antibody
C. Erythrocyte sedimentation rate (ESR)
D. Complete blood count with differential
Correct Answer: B. Anti-double-stranded DNA (anti-dsDNA) antibody
Rationale: While ANA is a sensitive screening test for SLE, anti-dsDNA
and anti-Smith antibodies are much more specific and are key
diagnostic criteria for the disease.
QUESTION 7
A 52-year-old male presents with acute, excruciating pain, erythema,
and swelling of the first metatarsophalangeal joint. Arthrocentesis
reveals negatively birefringent needle-shaped crystals. What is the most
appropriate initial treatment for an acute attack?
A. Allopurinol
Certification Exam | Complete Practice Questions,
Verified Answers & Detailed Rationales (2026/2027)
QUESTION 1
A 45-year-old patient presents with chronic heartburn and is diagnosed
with Barrett's esophagus. The nurse practitioner recognizes that this
condition involves which cellular adaptation?
A. Atrophy of the lower esophageal sphincter
B. Metaplasia of the squamous epithelium to columnar epithelium
C. Dysplasia of the gastric mucosa
D. Hyperplasia of the esophageal smooth muscle
Correct Answer: B. Metaplasia of the squamous epithelium to columnar
epithelium
Rationale: Barrett's esophagus is a classic example of metaplasia where
chronic acid exposure causes stratified squamous epithelium to be
replaced by columnar epithelium.
QUESTION 2
Which neurotransmitter deficiency is primarily implicated in the
pathophysiology of Parkinson's disease?
A. Serotonin
,B. Acetylcholine
C. Dopamine
D. Norepinephrine
Correct Answer: C. Dopamine
Rationale: Parkinson's disease is characterized by the degeneration of
dopaminergic neurons in the substantia nigra pars compacta, leading to
a deficiency of dopamine in the basal ganglia.
QUESTION 3
A patient with type 2 diabetes mellitus is prescribed metformin. Which
mechanism of action is primarily responsible for the therapeutic effect
of this medication?
A. Stimulation of insulin secretion from pancreatic beta cells
B. Inhibition of hepatic glucose production and enhancement of insulin
sensitivity
C. Delaying the digestion and absorption of carbohydrates in the small
intestine
D. Increasing renal glucose excretion through SGLT2 inhibition
Correct Answer: B. Inhibition of hepatic glucose production and
enhancement of insulin sensitivity
Rationale: Metformin is a biguanide that primarily works by decreasing
hepatic gluconeogenesis and improving peripheral glucose uptake and
insulin sensitivity.
,QUESTION 4
During a routine physical examination, a 60-year-old male has a blood
pressure reading of 142/92 mmHg on two separate occasions.
According to current guidelines, how should the nurse practitioner
classify this blood pressure?
A. Elevated
B. Stage 1 Hypertension
C. Stage 2 Hypertension
D. Hypertensive Crisis
Correct Answer: C. Stage 2 Hypertension
Rationale: Stage 2 hypertension is defined as a systolic blood pressure
of 140 mmHg or higher or a diastolic blood pressure of 90 mmHg or
higher.
QUESTION 5
A 28-year-old female presents with fatigue, weight gain, constipation,
and cold intolerance. Laboratory results reveal an elevated TSH and a
low free T4. What is the most likely diagnosis?
A. Graves disease
B. Hashimoto thyroiditis
C. Subacute thyroiditis
D. Toxic multinodular goiter
, Correct Answer: B. Hashimoto thyroiditis
Rationale: Hashimoto thyroiditis is the most common cause of primary
hypothyroidism, presenting with elevated TSH, low free T4, and typical
hypothyroid symptoms.
QUESTION 6
Which diagnostic test is considered the gold standard for confirming a
diagnosis of systemic lupus erythematosus (SLE)?
A. Anti-nuclear antibody (ANA) test
B. Anti-double-stranded DNA (anti-dsDNA) antibody
C. Erythrocyte sedimentation rate (ESR)
D. Complete blood count with differential
Correct Answer: B. Anti-double-stranded DNA (anti-dsDNA) antibody
Rationale: While ANA is a sensitive screening test for SLE, anti-dsDNA
and anti-Smith antibodies are much more specific and are key
diagnostic criteria for the disease.
QUESTION 7
A 52-year-old male presents with acute, excruciating pain, erythema,
and swelling of the first metatarsophalangeal joint. Arthrocentesis
reveals negatively birefringent needle-shaped crystals. What is the most
appropriate initial treatment for an acute attack?
A. Allopurinol
