HESI/NCLEX Pharmacology Exam Prep | Anticoagulants, Insulin, Cardiac Drugs & Medication Safety | 60 High-Yield Questions + Rationales 2026

HESI/NCLEX Pharmacology Exam Prep | Anticoagulants,
Insulin, Cardiac Drugs & Medication Safety | 60 High-Yield
Questions + Rationales


Question 1 (Diagram Prompt – Clotting Cascade)




Question:
Based on the diagram, which medication directly inhibits thrombin (Factor IIa)?

A. Warfarin
B. Heparin
C. Dabigatran
D. Aspirin

✅Correct Answer: C. Dabigatran

Rationale:

 Dabigatran = direct thrombin inhibitor (Factor IIa)
 Heparin works indirectly via antithrombin
 Warfarin inhibits vitamin K-dependent factors (II, VII, IX, X)

,Question 2 (Diagram Prompt – Insulin Action Curve)




Question:
Based on the graph, during which phase is the patient at highest risk for hypoglycemia?

A. Onset
B. Peak
C. Duration
D. Plateau

✅Correct Answer: B. Peak

Rationale:

 Peak = maximum insulin activity → highest hypoglycemia risk

, Question 3 (Diagram Prompt – Injection Sites)




Question:
Why must insulin injection sites be rotated?

A. Prevent infection
B. Reduce pain
C. Prevent lipodystrophy
D. Increase insulin dose

✅Correct Answer: C. Prevent lipodystrophy

Rationale:
Repeated injections → fat tissue damage → poor absorption