Herzing University HESI Pharmacology 50-
Question Practice Exam 2026 With Accurate
Answers
1. A client taking isoniazid should also receive which supplement?
A. Vitamin C
B. Vitamin B6
C. Iron
D. Vitamin D
Answer: B
Rationale: Isoniazid can cause peripheral neuropathy; Vitamin B6 (pyridoxine) prevents
this.
2. Rifampin commonly causes which harmless side effect?
A. Hypertension
B. Orange body fluids
C. Hair loss
D. Bradycardia
Answer: B
Rationale: Rifampin turns urine, sweat, and tears orange; this is expected.
3. Which lab is most important to monitor with TB therapy?
A. CBC
B. AST/ALT
C. Troponin
D. TSH
Answer: B
Rationale: TB medications are hepatotoxic; liver enzymes must be monitored.
4. A potassium level of 6.4 requires which action?
A. Document
B. Recheck in 24 hr
C. Report immediately
D. Give NSAID
, Answer: C
Rationale: Hyperkalemia can cause fatal arrhythmias.
Question Practice Exam 2026 With Accurate
Answers
1. A client taking isoniazid should also receive which supplement?
A. Vitamin C
B. Vitamin B6
C. Iron
D. Vitamin D
Answer: B
Rationale: Isoniazid can cause peripheral neuropathy; Vitamin B6 (pyridoxine) prevents
this.
2. Rifampin commonly causes which harmless side effect?
A. Hypertension
B. Orange body fluids
C. Hair loss
D. Bradycardia
Answer: B
Rationale: Rifampin turns urine, sweat, and tears orange; this is expected.
3. Which lab is most important to monitor with TB therapy?
A. CBC
B. AST/ALT
C. Troponin
D. TSH
Answer: B
Rationale: TB medications are hepatotoxic; liver enzymes must be monitored.
4. A potassium level of 6.4 requires which action?
A. Document
B. Recheck in 24 hr
C. Report immediately
D. Give NSAID
, Answer: C
Rationale: Hyperkalemia can cause fatal arrhythmias.
