Question

A patient who is taking warfarin must routinely take a blood test known as ______ to measure how well the blood clots.

a. IGG testing
b. international normalized ratio
c. normal prothrombin time
d. platelet count

Answer 1

A patient who is taking warfarin must routinely take a blood test known as international normalized ratio (INR) to measure how well the blood clots.

Step-by-step explanation:

A patient who is taking warfarin must routinely take a blood test known as international normalized ratio (INR) to measure how well the blood clots. The INR measures the speed of a particular pathway of coagulation, comparing it to normal. If the INR is increased, it means it is taking longer than usual for blood to clot.