The partial thromboplastin time (PTT) or activated partial thromboplastin time (aPTT or APTT) is a performance indicator measuring the efficacy of both the "intrinsic" (now referred to as the contact activation pathway) and the common coagulation pathways. Apart from detecting abnormalities in blood clotting, it is also used to monitor the treatment effects with heparin, a major anticoagulant. It is used in conjunction with the prothrombin time (PT) which measures the extrinsic pathway. Kaolin cephalin clotting time (KccT) is a historic name for the activated partial thromboplastin time.
Read more about Partial Thromboplastin Time: Method, Interpretation, History
Other articles related to "time, partial thromboplastin time":
... an abnormal collagen/adrenaline closure time and in most cases (but not all) a normal collagen/ADP time ... blood count (especially platelet counts), APTT (activated partial thromboplastin time), prothrombin time, thrombin time and fibrinogen level ... von Willebrand disease will typically display a normal prothrombin time and a variable prolongation of partial thromboplastin time ...
... Monitoring of the activated partial thromboplastin time is also not required and does not reflect the anticoagulant effect, as APTT is insensitive to alterations in factor Xa ... of heparin are measured in the lab by the partial thromboplastin time (aPTT), one of the measures of the time it takes the blood plasma to clot ... Partial thromboplastin time should not be confused with Prothrombin time, or PT, which measures blood clotting time through a different pathway of the coagulation cascade ...
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“The only coöperation which is commonly possible is exceedingly partial and superficial; and what little true coöperation there is, is as if it were not, being a harmony inaudible to men. If a man has faith, he will coöperate with equal faith everywhere; if he has not faith, he will continue to live like the rest of the world, whatever company he is joined to.”
—Henry David Thoreau (1817–1862)