NCLEX-RN PHARMACOLOGY PRACTICE EXAM 2026 100+ NGN
QUESTIONS, SATA, CASE STUDIES & RATIONALES LATEST NCSBN TEST
PLAN REVIEW
NCLEX-RN Pharmacology Practice Exam
50 NCLEX-Style Questions with Answers & Rationales
1. A nurse is administering regular insulin. Which onset time should the nurse expect?
,A. Immediate
B. 30–60 minutes
C. 2–4 hours
D. 6–8 hours
Answer: B. 30–60 minutes
Rationale: Regular insulin is short-acting insulin with an onset of approximately 30–60 minutes.
2. Which medication is considered a high-alert medication?
A. Acetaminophen
B. Heparin
C. Amoxicillin
D. Calcium carbonate
Answer: B. Heparin
Rationale: Heparin is classified as a high-alert medication due to its significant risk for bleeding if
administered incorrectly.
3. A patient taking warfarin should be instructed to monitor for:
A. Constipation
B. Tinnitus
C. Bleeding gums
D. Hyperactivity
Answer: C. Bleeding gums
Rationale: Bleeding gums may indicate excessive anticoagulation and increased bleeding risk.
4. Which laboratory value is most important before administering digoxin?
A. Hemoglobin
B. Potassium level
C. Sodium level
D. Calcium level
Answer: B. Potassium level
Rationale: Hypokalemia increases the risk for digoxin toxicity.
5. A nurse should question which prescription?
, A. Furosemide for edema
B. Metoprolol for hypertension
C. Morphine for severe pain
D. Potassium chloride IV push
Answer: D. Potassium chloride IV push
Rationale: Potassium chloride must never be administered IV push due to risk of fatal cardiac
dysrhythmias.
6. Which instruction is most important for a patient taking MAOIs?
A. Increase dairy intake
B. Avoid tyramine-rich foods
C. Limit fluid intake
D. Increase potassium intake
Answer: B. Avoid tyramine-rich foods
Rationale: Tyramine interactions can cause hypertensive crisis.
7. A nurse administers naloxone. Which outcome indicates effectiveness?
A. Increased sedation
B. Respiratory rate improves
C. Blood pressure decreases
D. Urine output increases
Answer: B. Respiratory rate improves
Rationale: Naloxone reverses opioid-induced respiratory depression.
8. Which medication requires monitoring of peak and trough levels?
A. Vancomycin
B. Ibuprofen
C. Prednisone
D. Loratadine
Answer: A. Vancomycin
Rationale: Vancomycin requires therapeutic monitoring to prevent nephrotoxicity and ensure
effectiveness.
9. A patient receiving morphine develops respiratory depression. What is the priority action?
QUESTIONS, SATA, CASE STUDIES & RATIONALES LATEST NCSBN TEST
PLAN REVIEW
NCLEX-RN Pharmacology Practice Exam
50 NCLEX-Style Questions with Answers & Rationales
1. A nurse is administering regular insulin. Which onset time should the nurse expect?
,A. Immediate
B. 30–60 minutes
C. 2–4 hours
D. 6–8 hours
Answer: B. 30–60 minutes
Rationale: Regular insulin is short-acting insulin with an onset of approximately 30–60 minutes.
2. Which medication is considered a high-alert medication?
A. Acetaminophen
B. Heparin
C. Amoxicillin
D. Calcium carbonate
Answer: B. Heparin
Rationale: Heparin is classified as a high-alert medication due to its significant risk for bleeding if
administered incorrectly.
3. A patient taking warfarin should be instructed to monitor for:
A. Constipation
B. Tinnitus
C. Bleeding gums
D. Hyperactivity
Answer: C. Bleeding gums
Rationale: Bleeding gums may indicate excessive anticoagulation and increased bleeding risk.
4. Which laboratory value is most important before administering digoxin?
A. Hemoglobin
B. Potassium level
C. Sodium level
D. Calcium level
Answer: B. Potassium level
Rationale: Hypokalemia increases the risk for digoxin toxicity.
5. A nurse should question which prescription?
, A. Furosemide for edema
B. Metoprolol for hypertension
C. Morphine for severe pain
D. Potassium chloride IV push
Answer: D. Potassium chloride IV push
Rationale: Potassium chloride must never be administered IV push due to risk of fatal cardiac
dysrhythmias.
6. Which instruction is most important for a patient taking MAOIs?
A. Increase dairy intake
B. Avoid tyramine-rich foods
C. Limit fluid intake
D. Increase potassium intake
Answer: B. Avoid tyramine-rich foods
Rationale: Tyramine interactions can cause hypertensive crisis.
7. A nurse administers naloxone. Which outcome indicates effectiveness?
A. Increased sedation
B. Respiratory rate improves
C. Blood pressure decreases
D. Urine output increases
Answer: B. Respiratory rate improves
Rationale: Naloxone reverses opioid-induced respiratory depression.
8. Which medication requires monitoring of peak and trough levels?
A. Vancomycin
B. Ibuprofen
C. Prednisone
D. Loratadine
Answer: A. Vancomycin
Rationale: Vancomycin requires therapeutic monitoring to prevent nephrotoxicity and ensure
effectiveness.
9. A patient receiving morphine develops respiratory depression. What is the priority action?
