NCLEX-RN Comprehensive Exam 2
(Practice Test) Examination Actual
Practice Exam 2025|2026 Question And
Correct Answers & Explanation
1. A nurse is caring for a client with dyspnea. What is the priority
intervention?
A. Encourage fluids
B. Position in high Fowler’s
C. Provide food
D. Administer laxatives
Correct Answer: B
Rationale: Upright positioning improves lung expansion and
breathing.
2. Which vital sign requires immediate attention?
A. BP 118/76 mmHg
B. HR 72 bpm
C. RR 32/min
D. Temp 36.8°C
Correct Answer: C
Rationale: Tachypnea indicates respiratory distress.
3. What is the normal oxygen saturation level?
A. 70–80%
,B. 85–90%
C. 95–100%
D. 60–70%
Correct Answer: C
Rationale: Normal SpO₂ is 95–100%.
4. A patient with COPD should receive oxygen cautiously
because:
A. It increases BP
B. It suppresses respiratory drive
C. It causes infection
D. It increases heart rate
Correct Answer: B
Rationale: High oxygen levels can suppress hypoxic drive in COPD
patients.
5. What is the first sign of hypoxia?
A. Cyanosis
B. Restlessness
C. Bradycardia
D. Hypotension
Correct Answer: B
Rationale: Early hypoxia presents as restlessness.
6. Which lab value indicates infection?
A. Low WBC
B. High WBC
,C. Low hemoglobin
D. High platelets
Correct Answer: B
Rationale: Elevated WBC indicates infection.
7. What is the priority nursing action for fever?
A. Give antibiotics immediately
B. Monitor temperature and hydration
C. Ignore
D. Give insulin
Correct Answer: B
Rationale: Supportive care is essential initially.
8. A patient is receiving heparin. What should the nurse monitor?
A. Blood glucose
B. Bleeding
C. Urine output
D. Temperature
Correct Answer: B
Rationale: Heparin increases bleeding risk.
9. What is the antidote for heparin?
A. Vitamin K
B. Protamine sulfate
C. Naloxone
D. Atropine
, Correct Answer: B
Rationale: Protamine reverses heparin effects.
10. Which electrolyte imbalance causes muscle weakness?
A. Hypernatremia
B. Hypokalemia
C. Hypercalcemia
D. Hyperglycemia
Correct Answer: B
Rationale: Low potassium affects muscle function.
11. What is the normal sodium level?
A. 120–130 mmol/L
B. 135–145 mmol/L
C. 150–160 mmol/L
D. 160–170 mmol/L
Correct Answer: B
Rationale: Normal sodium range is 135–145 mmol/L.
12. A patient with fluid overload will show:
A. Dry skin
B. Edema
C. Weight loss
D. Hypotension
Correct Answer: B
Rationale: Excess fluid leads to swelling.
(Practice Test) Examination Actual
Practice Exam 2025|2026 Question And
Correct Answers & Explanation
1. A nurse is caring for a client with dyspnea. What is the priority
intervention?
A. Encourage fluids
B. Position in high Fowler’s
C. Provide food
D. Administer laxatives
Correct Answer: B
Rationale: Upright positioning improves lung expansion and
breathing.
2. Which vital sign requires immediate attention?
A. BP 118/76 mmHg
B. HR 72 bpm
C. RR 32/min
D. Temp 36.8°C
Correct Answer: C
Rationale: Tachypnea indicates respiratory distress.
3. What is the normal oxygen saturation level?
A. 70–80%
,B. 85–90%
C. 95–100%
D. 60–70%
Correct Answer: C
Rationale: Normal SpO₂ is 95–100%.
4. A patient with COPD should receive oxygen cautiously
because:
A. It increases BP
B. It suppresses respiratory drive
C. It causes infection
D. It increases heart rate
Correct Answer: B
Rationale: High oxygen levels can suppress hypoxic drive in COPD
patients.
5. What is the first sign of hypoxia?
A. Cyanosis
B. Restlessness
C. Bradycardia
D. Hypotension
Correct Answer: B
Rationale: Early hypoxia presents as restlessness.
6. Which lab value indicates infection?
A. Low WBC
B. High WBC
,C. Low hemoglobin
D. High platelets
Correct Answer: B
Rationale: Elevated WBC indicates infection.
7. What is the priority nursing action for fever?
A. Give antibiotics immediately
B. Monitor temperature and hydration
C. Ignore
D. Give insulin
Correct Answer: B
Rationale: Supportive care is essential initially.
8. A patient is receiving heparin. What should the nurse monitor?
A. Blood glucose
B. Bleeding
C. Urine output
D. Temperature
Correct Answer: B
Rationale: Heparin increases bleeding risk.
9. What is the antidote for heparin?
A. Vitamin K
B. Protamine sulfate
C. Naloxone
D. Atropine
, Correct Answer: B
Rationale: Protamine reverses heparin effects.
10. Which electrolyte imbalance causes muscle weakness?
A. Hypernatremia
B. Hypokalemia
C. Hypercalcemia
D. Hyperglycemia
Correct Answer: B
Rationale: Low potassium affects muscle function.
11. What is the normal sodium level?
A. 120–130 mmol/L
B. 135–145 mmol/L
C. 150–160 mmol/L
D. 160–170 mmol/L
Correct Answer: B
Rationale: Normal sodium range is 135–145 mmol/L.
12. A patient with fluid overload will show:
A. Dry skin
B. Edema
C. Weight loss
D. Hypotension
Correct Answer: B
Rationale: Excess fluid leads to swelling.
