Dr Xiong placed Marcus on a \"blood thinning drug called warfarin, which works b

Question

Dr Xiong placed Marcus on a "blood thinning drug called warfarin, which works by preventing clots from forming Marcus returned to his normal activities but quickly found himself back in Dr. Xiong's office after suffering from frequent nose bleeds.A laboratory test called an INR (International Normalized Ratio) was performed. This test measures the time it takes for blood to clot and compares to an average The higher the INR number, the longer it takes blood to clot See Table 1 for Marcus's result Table 1 Marcus' Values Blood Test INR Source Normal Values 08-11 Based on the test results abowe, Marcus's clotting time is Hints shorter than normal, and his warfarin dose should be increased longer than normal and his warfarin dose should be increased longer han normal and his warfarin dase should bo decreased shorter than normal and his warfarin dose should be decreased Submit My Answers Give Up Part G This question will be shown after you complete previous question s)

Explanation / Answer

The INR value for Marcus is 5.5 whereas the normal value is between 0.6-1.1. Higher the INR value, longer it takes for the blood to clot. So, Marcus's clotting time is longer than normal, and his warfarin dose should be decreased (option 3).

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