Thrombin Time

**Definition:** Clotting time of PLASMA mixed with a THROMBIN solution. It is a measure of the conversion of FIBRINOGEN to FIBRIN, which is prolonged by AFIBRINOGENEMIA, abnormal fibrinogen, or the presence of inhibitory substances, e.g., fibrin-fibrinogen degradation products, or HEPARIN. BATROXOBIN, a thrombin-like enzyme unaffected by the presence of heparin, may be used in place of thrombin.

**Tree numbers:** - E01.370.225.625.115.870 - E05.200.625.115.870 - G09.188.840

**Synonyms:** - Reptilase Time