Posted on 7/19/2022
Prothrombin time (PT) refers to the time required for plasma coagulation after the conversion of prothrombin to thrombin after adding an excess of tissue thromboplastin and an appropriate amount of calcium ions to platelet-deficient plasma.
The high prothrombin time (PT), that is, the prolongation of the time, may be caused by various reasons such as congenital abnormal coagulation factors, acquired abnormal coagulation factors, abnormal blood anticoagulation status, etc. The main analysis is as follows:
1. Abnormal congenital coagulation factors: Abnormal production of any one of coagulation factors I, II...