| TAT

Thrombin–antithrombin complex (TAT) is a protein complex of thrombin and antithrombin.It is a marker of net activation of coagulation.TAT is formed in response to the high thrombin level caused by coagulation following a ruptured vessel. Since thrombin is rapidly bound by antithrombin, TAT is a useful measure for thrombin level in the blood. Thrombin can pass the blood–brain barrier, destroying neurons and potentially causing cerebral edemas.The half-life of TAT is approximately 15 minutes.TAT levels are increased with pregnancy and by ethinylestradiol-containing birth control pills.They have also been reported to be increased by menopausal hormone therapy, although findings are mixed, and with high-dose parenteral estradiol therapy for prostate cancer.
 

| Typical data

As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, wash technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data are provided below for reference only.

 

Concentration (pg/mL)	400	200	100	50	25	12.5	6.25	0
OD	2.22	1.56	0.92	0.63	0.42	0.25	0.18	0.08
Corrected OD	2.14	1.48	0.84	0.55	0.34	0.17	0.1	-

 

| Repeatability

Intra-assay Precision (Precision within an assay)：CV% < 10%; Inter-assay Precision (Precision between assays)：CV% < 10%
 

| Recovery

The recovery of Human TAT spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.

 

Sample Type	Range(%)	Average Recovery(%)
Plasma(n=8)	92-105	103

 

| Linearity

Samples were spiked with high concentrations of Human TAT and diluted with Universal Diluent to produce samples with values within the range of the assay.

 

		Plasma(n=4)
1 : 2	Range (%)	88-95
	Average (%)	93
1 : 4	Range (%)	87-108
	Average (%)	97