NCLEX Practice Exam (May
2026 Testing Window) Exam
Questions And Correct
Answers (Verified Answers)
Plus Rationales 2025/2026
Q&A | Instant Download Pdf
1. A client with heart failure is prescribed furosemide.
Which finding requires immediate intervention?
A. Potassium 3.2 mEq/L
B. Weight loss of 1 kg
C. Blood pressure 128/76 mmHg
D. Urine output 50 mL/hr
Answer: A. Potassium 3.2 mEq/L
Rationale: Loop diuretics like furosemide cause potassium
loss. Hypokalemia increases risk of life-threatening
dysrhythmias.
2. A nurse is caring for a client in diabetic ketoacidosis
(DKA). Which insulin is administered first?
,A. NPH insulin
B. Regular insulin
C. Glargine insulin
D. Lispro insulin
Answer: B. Regular insulin
Rationale: Regular insulin is IV-compatible and used for
rapid correction of hyperglycemia in DKA.
3. Which symptom is most indicative of hypoglycemia?
A. Fruity breath odor
B. Slow, deep respirations
C. Diaphoresis and tremors
D. Dry mucous membranes
Answer: C. Diaphoresis and tremors
Rationale: Sympathetic activation in hypoglycemia causes
sweating, shakiness, and anxiety.
4. A client post-thyroidectomy reports difficulty breathing.
What is the nurse’s priority action?
A. Encourage deep breathing
B. Assess for hemorrhage
C. Elevate head of bed
D. Administer analgesic
Answer: B. Assess for hemorrhage
Rationale: Airway compromise after thyroid surgery may
indicate bleeding and tracheal compression.
,5. Which laboratory value indicates infection?
A. WBC 4,000/mm³
B. WBC 15,000/mm³
C. Hemoglobin 14 g/dL
D. Platelets 250,000/mm³
Answer: B. WBC 15,000/mm³
Rationale: Elevated white blood cells indicate infection or
inflammation.
6. A nurse is teaching a client about warfarin therapy.
Which food should be limited?
A. Apples
B. Spinach
C. Rice
D. Chicken
Answer: B. Spinach
Rationale: Leafy greens are high in vitamin K, which reduces
warfarin effectiveness.
7. What is the priority nursing action for a client
experiencing anaphylaxis?
A. Obtain vital signs
B. Administer epinephrine
C. Start IV fluids
D. Give antihistamines
, Answer: B. Administer epinephrine
Rationale: Epinephrine reverses airway swelling and
bronchoconstriction immediately.
8. Which position is best for a client with respiratory
distress?
A. Supine
B. Trendelenburg
C. High Fowler’s
D. Prone
Answer: C. High Fowler’s
Rationale: Upright position improves lung expansion and
oxygenation.
9. A client with tuberculosis should be placed in which
isolation?
A. Contact
B. Droplet
C. Airborne
D. Protective
Answer: C. Airborne
Rationale: TB spreads via airborne particles requiring
negative pressure room.
10. Which symptom suggests opioid overdose?
2026 Testing Window) Exam
Questions And Correct
Answers (Verified Answers)
Plus Rationales 2025/2026
Q&A | Instant Download Pdf
1. A client with heart failure is prescribed furosemide.
Which finding requires immediate intervention?
A. Potassium 3.2 mEq/L
B. Weight loss of 1 kg
C. Blood pressure 128/76 mmHg
D. Urine output 50 mL/hr
Answer: A. Potassium 3.2 mEq/L
Rationale: Loop diuretics like furosemide cause potassium
loss. Hypokalemia increases risk of life-threatening
dysrhythmias.
2. A nurse is caring for a client in diabetic ketoacidosis
(DKA). Which insulin is administered first?
,A. NPH insulin
B. Regular insulin
C. Glargine insulin
D. Lispro insulin
Answer: B. Regular insulin
Rationale: Regular insulin is IV-compatible and used for
rapid correction of hyperglycemia in DKA.
3. Which symptom is most indicative of hypoglycemia?
A. Fruity breath odor
B. Slow, deep respirations
C. Diaphoresis and tremors
D. Dry mucous membranes
Answer: C. Diaphoresis and tremors
Rationale: Sympathetic activation in hypoglycemia causes
sweating, shakiness, and anxiety.
4. A client post-thyroidectomy reports difficulty breathing.
What is the nurse’s priority action?
A. Encourage deep breathing
B. Assess for hemorrhage
C. Elevate head of bed
D. Administer analgesic
Answer: B. Assess for hemorrhage
Rationale: Airway compromise after thyroid surgery may
indicate bleeding and tracheal compression.
,5. Which laboratory value indicates infection?
A. WBC 4,000/mm³
B. WBC 15,000/mm³
C. Hemoglobin 14 g/dL
D. Platelets 250,000/mm³
Answer: B. WBC 15,000/mm³
Rationale: Elevated white blood cells indicate infection or
inflammation.
6. A nurse is teaching a client about warfarin therapy.
Which food should be limited?
A. Apples
B. Spinach
C. Rice
D. Chicken
Answer: B. Spinach
Rationale: Leafy greens are high in vitamin K, which reduces
warfarin effectiveness.
7. What is the priority nursing action for a client
experiencing anaphylaxis?
A. Obtain vital signs
B. Administer epinephrine
C. Start IV fluids
D. Give antihistamines
, Answer: B. Administer epinephrine
Rationale: Epinephrine reverses airway swelling and
bronchoconstriction immediately.
8. Which position is best for a client with respiratory
distress?
A. Supine
B. Trendelenburg
C. High Fowler’s
D. Prone
Answer: C. High Fowler’s
Rationale: Upright position improves lung expansion and
oxygenation.
9. A client with tuberculosis should be placed in which
isolation?
A. Contact
B. Droplet
C. Airborne
D. Protective
Answer: C. Airborne
Rationale: TB spreads via airborne particles requiring
negative pressure room.
10. Which symptom suggests opioid overdose?
