Which of the following tests is used to assess platelet function in vivo?

Question

Quizplus · Accepted Answer

Bleeding time is the only test among the options listed that assesses platelet function in vivo by measuring the time it takes for bleeding to stop after a standardized skin incision. Protime and activated partial thromboplastin time assess the coagulation cascade and are not specific for platelet function. Platelet aggregation studies are an in vitro test that assesses platelet function by measuring the ability of platelets to clump together in response to different agonists.

Which of the Following Tests Is Used to Assess Platelet