A partial thromboplastin time test tells you how long it takes your blood to clot. ... What’s normal varies with different labs, ... and your aPTT to be 60 to 80 seconds.

Factor deficiency or inhibition. The possible causes of the isolated prolonged aPTT in this case include factor deficiencies and factor inhibitors. Prolongation of both the PT and aPTT suggests ...

CLSI Publishes Guideline for One-Stage Prothrombin Time (PT) Test and Activated Partial Thromboplastin Time (APTT) Test June 09, 2008 08:30 AM Eastern Daylight Time ...

The most common methods for monitoring UFH are the activated partial thromboplastin time (aPTT) and antifactor Xa heparin assay (anti-Xa HA), but both present challenges, and the optimal method to ...