PARTIAL THROMBOPLASTIN TIME
\pˈɑːʃə͡l θɹˈɒmbəplˌastɪn tˈa͡ɪm], \pˈɑːʃəl θɹˈɒmbəplˌastɪn tˈaɪm], \p_ˈɑː_ʃ_əl θ_ɹ_ˈɒ_m_b_ə_p_l_ˌa_s_t_ɪ_n t_ˈaɪ_m]\
Sort: Oldest first
-
Test of the intrinsic (factors VIII, IX, XI, and XII) and common (fibrinogen, prothrombin, factors V and X) pathways of coagulation in which a mixture of plasma and phospholipid platelet substitute (e.g., crude cephalins, soybean phosphatides) is recalcified and the time required for the appearance of fibrin strands measured. Activation may be provided by contact with the glass tube or exposure to activators (e.g., ellagic acid, particulate silicates such as diatomaceous earth or kaolin) before addition of the calcium chloride. It is used as a screening test and to monitor heparin therapy.
By DataStellar Co., Ltd
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.