Back to Classroom |Abnormal Coagulation Tests and Possible Causes.
Possible Causes of Abnormal APTT, PT, and TT
Normal
Abnormal
Possible Causes
APTT, PT TT Fibrinogen Dysfunction APTT, TT PT Coumadin, Liver Disease, Vit. K Def., Factor VII Def. PT,TT APTT von Willebrand's, Factor XI or Xiii Def., Hemophilia PT APTT, TT Heparin --- APTT, PT, TT Severe Fibrinogen Dysfunction, DIC
APTT - to assess intrinsic coagulation.
PT - to assess extrinsis coagulation.
TT - to assess fibrinogen function.
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