Prothrombin time (PT) is primarily used to monitor
a. The risk of an older adult developing bleeding disorders
b. Older adults who are taking oral anticoagulant therapy
c. Dissolving blood clots for older adults with deep vein thrombosis
d. Thickness of the blood
B
PT measures the portion of the clotting cascade that is changed with oral anticoagulant treatment. PT could identify defects in the clotting cascade that could be useful in calculating bleeding risk. It is not used to identify older adults who are at risk for the development of bleeding disorders (response A). Responses C and D are incorrect. Clotting times are not related to thinness of blood or dissolving of clots.
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Fill in the blank(s) with the appropriate word(s).
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