Understand Your Test

Thrombin Time

Formal Name

 Thrombin Time

Why Get Tested?

As part of an investigation of excessive bleeding or inappropriate blood clot formation (thrombotic episode), particularly to evaluate the level and function of fibrinogen; to detect heparin contamination.

When To Get Tested?

When you have bleeding or thrombotic episodes, or recurrent miscarriages; when a PT and/or PTT test is prolonged, particularly if abnormal fibrinogen level or function is considered; when heparin contamination of a blood sample is suspected.