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Thrombin Time

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Also known as: TT; Thrombin Clotting Time
Formal name: Thrombin Time

At a Glance

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

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?