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Thrombin Time (TT)

Also known as: TT; Thrombin Clotting Time
Formal name: Thrombin Time
Related tests: Prothrombin Time (PT); Partial Thromboplastin Time (PTT); Reptilase Time; Fibrinogen; Coagulation Factors; D-dimer; Lupus Anticoagulant

Why should I do it?
As part of an investigation of a bleeding or thrombotic episode, particularly to evaluate the level and function of fibrinogen; to detect heparin contamination

When should I do it?
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

What Kind of Sample is Needed?
A blood sample drawn from a vein in your arm

Test Preparation Needed?
None