Oct

7

2021

What are causes of elevated prothrombin time (PT) and activated partial thromboplastin time (aPTT)?

By William Aird

Deficiency or inhibitor of common pathway factors (factor X, factor V and prothrombin) or combined deficiencies of intrinsic and extrinsic pathways (for example chronic liver disease, heparin treatment, and disseminated intravascular coagulation [DIC]).