English - Helena Laboratories

The clotting time is further shortened to 21-32 sec by preincubation of the plasma with particulate substances such as kaolin (insoluble aluminum silicate). The reaction initiated by kaolin, PL, and calcium is termed the activated partial thromboplastin time (aPTT) test. Alternatively, the clotting time of recalcified plasma can be shortened to ... ................
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