Question

A stable daily dose of warfarin is reached when which parameter is achieved?

A) Maximum blood clotting
B) Minimum bleeding time
C) Steady INR level
D) High platelet count

Answer 1

A stable daily dose of warfarin is reached when a steady INR level is achieved to balance the risk of clotting and bleeding.

Step-by-step explanation:

A stable daily dose of warfarin is achieved when a steady INR level is maintained. The International Normalized Ratio (INR) is a measure used to assess the effectiveness of anticoagulant drugs like warfarin by determining the time it takes for blood to clot, and comparing it to an average. A therapeutic INR range is essential for ensuring that blood remains sufficiently anticoagulated to prevent excessive clotting without causing undue bleeding risk. Therefore, when warfarin treatment has reached a stable phase, the INR value should remain consistent within that therapeutic range.