NUR 150 Pharmacology Exam 1 - NCLEX Practice Questions | 2026 Correct Answers

NU 150 Pharmacology Exam 1 - NCLEX Practice Questions
1. Question 1: A client asks the nurse why their medication must be taken with food. The nurse
understands that food impacts drug:

 A. Bioavailability
 B. Idiosyncratic reaction
 C. Contraindication
 D. Half-life

✅ Answer: A. Bioavailability
📚 Rationale: Bioavailability refers to the extent and rate at which a drug enters systemic
circulation. Food can alter absorption and affect how much of the drug reaches circulation.
(Ford, p. 5)



2. Question 2: Which term describes a drug reaction that is unpredictable and not dose-
related?

 A. Adverse effect
 B. Allergic reaction
 C. Drug idiosyncrasy
 D. Tolerance

✅ Answer: C. Drug idiosyncrasy
📚 Rationale: Drug idiosyncrasy is an unusual, abnormal reaction to a drug, often unpredictable
and not related to dose or allergy. (Ford, p. 6)



3. Question 3: A client asks the nurse why their medication must be taken with food. The nurse
understands that food impacts drug:

 A. Bioavailability
 B. Idiosyncratic reaction
 C. Contraindication
 D. Half-life

✅ Answer: A. Bioavailability

,📚 Rationale: Bioavailability refers to the extent and rate at which a drug enters systemic
circulation. Food can alter absorption and affect how much of the drug reaches circulation.
(Ford, p. 5)



4. Question 4: Which term describes a drug reaction that is unpredictable and not dose-
related?

 A. Adverse effect
 B. Allergic reaction
 C. Drug idiosyncrasy
 D. Tolerance

✅ Answer: C. Drug idiosyncrasy
📚 Rationale: Drug idiosyncrasy is an unusual, abnormal reaction to a drug, often unpredictable
and not related to dose or allergy. (Ford, p. 6)



5. Question 5: A client asks the nurse why their medication must be taken with food. The nurse
understands that food impacts drug:

 A. Bioavailability
 B. Idiosyncratic reaction
 C. Contraindication
 D. Half-life

✅ Answer: A. Bioavailability
📚 Rationale: Bioavailability refers to the extent and rate at which a drug enters systemic
circulation. Food can alter absorption and affect how much of the drug reaches circulation.
(Ford, p. 5)



6. Question 6: Which term describes a drug reaction that is unpredictable and not dose-
related?

 A. Adverse effect
 B. Allergic reaction
 C. Drug idiosyncrasy
 D. Tolerance

✅ Answer: C. Drug idiosyncrasy

, 📚 Rationale: Drug idiosyncrasy is an unusual, abnormal reaction to a drug, often unpredictable
and not related to dose or allergy. (Ford, p. 6)



7. Question 7: A client asks the nurse why their medication must be taken with food. The nurse
understands that food impacts drug:

 A. Bioavailability
 B. Idiosyncratic reaction
 C. Contraindication
 D. Half-life

✅ Answer: A. Bioavailability
📚 Rationale: Bioavailability refers to the extent and rate at which a drug enters systemic
circulation. Food can alter absorption and affect how much of the drug reaches circulation.
(Ford, p. 5)



8. Question 8: Which term describes a drug reaction that is unpredictable and not dose-
related?

 A. Adverse effect
 B. Allergic reaction
 C. Drug idiosyncrasy
 D. Tolerance

✅ Answer: C. Drug idiosyncrasy
📚 Rationale: Drug idiosyncrasy is an unusual, abnormal reaction to a drug, often unpredictable
and not related to dose or allergy. (Ford, p. 6)



9. Question 9: A client asks the nurse why their medication must be taken with food. The nurse
understands that food impacts drug:

 A. Bioavailability
 B. Idiosyncratic reaction
 C. Contraindication
 D. Half-life

✅ Answer: A. Bioavailability