Increased time to coagulation in the partial thromboplastin time (PTT) test, a measure of the intrinsic and common coagulation pathways. Phospholipid, and activator, and calcium are mixed into an anticoagulated plasma sample, and the time is measured until a thrombus forms.
Prolonged reptilase time
Prolonged whole-blood clotting time
Synonyms
Exact Synonyms:
Abnormal partial thromboplastin time
;
Delayed thromboplastin generation
;
Prolonged PTT
;
Prolonged activated partial thromboplastin time