71f61991_Bleeding_Disorders__Measures
[Test] Thrombin Time (TT) [Ordered when/to] Help evaluate bleeding episode; sometimes when PTT prolonged; when heparin contamination suspected [Abnormal results may indicate] If elevated, heparin may be contaminating blood sample; also elevated with FDP, with very low levels of fibrinogen, and with abnormal fibrinogen [Measures] 
Time to clot; thrombin activates fibrinogen to fibrin stands; TT detects presence of inhibitors to this process
Bleeding Disorders
Measures