ATI RN
NCLEX questions on chemotherapy drugs Questions
Question 1 of 5
Prednisolone
Correct Answer: B
Rationale: Prednisolone (glucocorticoid) causes hyperglycemia (insulin resistance) and hypokalemia (potassium shift).
Question 2 of 5
The penicillin G preparation with the longest duration of action is:
Correct Answer: A
Rationale: Benzathine penicillin G has the longest duration (weeks) due to its slow-release intramuscular formulation, ideal for syphilis.
Question 3 of 5
The drug of choice in patients allergic to penicillin is:
Correct Answer: D
Rationale: Erythromycin (macrolide) is a common alternative for penicillin-allergic patients, unlike β-lactams (imipenem, cefazolin, meropenem) which risk cross-reactivity.
Question 4 of 5
A patient on antibacterial therapy has to do an operation in which a skeletal muscle relaxant may be used. He will be at risk if this antimicrobial is:
Correct Answer: B
Rationale: Aminoglycosides (e.g., gentamicin) potentiate neuromuscular blockade, risking respiratory depression with muscle relaxants.
Question 5 of 5
A 10 year old boy with glucose-6-phosphate dehydrogenase deficiency has typhoid fever, the best drug for treatment is:
Correct Answer: C
Rationale: Amoxicillin is safe in G6PD deficiency for typhoid (Salmonella typhi). Co-trimoxazole and chloramphenicol risk hemolysis, and ciprofloxacin is avoided in children.