(2026) -, Answers & Detailed
Rationales for Family Nurse
Practitioner Board Exam Prep (PDF) |
LEIK FNP Exam Practice Questions (2026) -, | Comprehensive
Examination
LEIK FNP Exam Practice Questions (2026) -, Answers &
Detailed Rationales for Family Nurse Practitioner Board
Exam Prep (PDF) actual exam preparation document with
INTRODUCTION
This document is an important and very helpful preparation
resource for LEIK FNP Exam Practice Questions (2026) -,
Answers & Detailed Rationales for Family Nurse Practitioner
Board Exam Prep (PDF). Every item uses a focused exam stem,
four response options, a keyed response, and a clear rationale,
making it easier to understand the subject, spot distractors, and
build real exam confidence.
Page 1
, Question 1
A patient with heart failure and reduced ejection fraction (HFrEF) is stable on
guideline-directed medical therapy (GDMT) including sacubitril/valsartan,
carvedilol, and spironolactone. Which additional agent has the strongest
evidence for reducing cardiovascular mortality and heart failure hospitalization
when added to this regimen?
A. Digoxin
B. Dapagliflozin
C. Ivabradine
D. Hydralazine/isosorbide dinitrate
Correct Answer: B - Dapagliflozin
RATIONALE
SGLT2 inhibitors (dapagliflozin, empagliflozin) are now a cornerstone
of GDMT for HFrEF, with landmark trials (DAPA-HF,
EMPEROR-Reduced) showing significant reductions in
cardiovascular death and HF hospitalization regardless of diabetes
status. Digoxin reduces hospitalizations but not mortality; ivabradine
is used for rate control in specific patients; hydralazine/isosorbide
dinitrate is primarily for those who cannot tolerate ACEi/ARB/ARNI.
Question 2
Which finding on a peripheral blood smear is most characteristic of hereditary
spherocytosis?
A. Schistocytes
B. Spherocytes with increased osmotic fragility
C. Target cells
D. Basophilic stippling
Correct Answer: B - Spherocytes with increased osmotic fragility
Page 2
, RATIONALE
Hereditary spherocytosis is caused by defects in RBC membrane
proteins (e.g., spectrin, ankyrin), leading to loss of membrane surface
area and formation of spherocytes. These cells have increased osmotic
fragility, which is a key diagnostic test. Schistocytes suggest
microangiopathic hemolysis; target cells are seen in liver disease or
thalassemia; basophilic stippling is typical of lead poisoning or
sideroblastic anemia.
Question 3
A patient presents with sudden onset of severe unilateral headache, ptosis, and
miosis. Which of the following is the most appropriate immediate
management?
A. Sumatriptan 6 mg subcutaneous
B. High-flow oxygen and verapamil
C. Prednisone 60 mg daily
D. Topiramate 100 mg daily
Correct Answer: B - High-flow oxygen and verapamil
RATIONALE
The presentation is consistent with a cluster headache, characterized
by severe unilateral periorbital pain, ipsilateral ptosis, miosis, and
lacrimation. Acute treatment includes high-flow oxygen (100% at 12
L/min) and triptans; verapamil is the first-line preventive agent.
Sumatriptan is effective acutely but not the most immediate
management in this scenario; prednisone and topiramate are
preventive but not immediate.
Question 4
Which of the following is the most appropriate screening strategy for a patient
with a strong family history of early-onset colorectal cancer (first-degree
relative diagnosed at age 45)?
Page 3
, A. Begin colonoscopy at age 40 or 10 years before the relative's
diagnosis, whichever is earlier
B. Begin annual fecal immunochemical testing (FIT) at age 45
C. Begin colonoscopy at age 50
D. Begin CT colonography every 5 years starting at age 45
Correct Answer: A - Begin colonoscopy at age 40 or 10 years
before the relative's diagnosis, whichever is earlier
RATIONALE
For individuals with a first-degree relative diagnosed with colorectal
cancer before age 60, guidelines recommend initiating colonoscopy at
age 40 or 10 years before the relative's diagnosis (whichever is
earlier), and repeating every 5 years. FIT is for average-risk screening;
starting at 50 misses the earlier risk; CT colonography is not the
preferred modality for high-risk individuals.
Question 5
A patient with type 2 diabetes on metformin and empagliflozin presents with
nausea, vomiting, and abdominal pain. Labs show pH 7.25, bicarbonate 14
mEq/L, anion gap 22, and blood glucose 210 mg/dL. Which of the following is
the most likely diagnosis?
A. Diabetic ketoacidosis (DKA)
B. Hyperosmolar hyperglycemic state (HHS)
C. Euglycemic diabetic ketoacidosis (euDKA)
D. Lactic acidosis
Correct Answer: C - Euglycemic diabetic ketoacidosis (euDKA)
Page 4