Question

Which statement is true regarding the INR?

A) It is measured by a TEG.
B) It evaluates the body's ability to form clot as a whole dynamic process.
C) It measures the adequacy of anticoagulation for patients taking warfarin.
D) The blood sample must be drawn from an artery.
E) None of the above.

Answer 1

The correct statement about the INR is that it measures the adequacy of anticoagulation for patients taking warfarin. This test monitors the effectiveness of warfarin in preventing blood clots.

Step-by-step explanation:

The INR (International Normalized Ratio) is a blood test used to measure the time it takes for blood to clot and to compare this time with an average. The correct statement regarding the INR among the options provided is C) It measures the adequacy of anticoagulation for patients taking warfarin. Warfarin is an anticoagulant medication, and the INR is utilized to monitor the effectiveness of this drug in thinning the blood to prevent clotting disorders such as thrombosis. The INR reflects how long it takes for blood to form a clot which is measured against a standard value.