Certified Clinical Medical Assistant Exam Practice Question

Correct Answer: D

Rationale: Warfarin is an anticoagulant that specifically inhibits vitamin K-dependent clotting factors, leading to prolonged bleeding time. This medication is widely recognized for its role in preventing blood clots, making it crucial for medical assistants to identify its effects on bleeding.

Lisinopril, an ACE inhibitor, primarily manages hypertension and does not significantly affect bleeding time. Nitroglycerin, used for angina, works by dilating blood vessels but does not impact coagulation. Epinephrine, often used in emergencies, acts as a vasoconstrictor and does not prolong bleeding. Understanding these distinctions is vital for patient safety and effective care.