The technique of producing the reference values of low-frequency piezothromboelastography in Wistar strain male rats
Abstract
The reference values of low-frequency piezothromboelastography (LFPTEG) in Wistar strain male rats (n=31) weighing 230-330 g, anesthetized with tiletamine-zolazepam (20-40 mg/kg i.m.) + xylazine (5-10 mg/kg i.m.) when taking blood from the left carotid artery in volume of 0,45 ml have been determined. At once after blood sampling the whole blood without citrate was placed in LFPTEG ARP-01M “Mednord” for 8 sec. In the control settings the amplitude delta for adopting a maximum of 1 point, the waiting time of increasing the amplitude for 20 min and calculating density of the clot (DC) according to the formula: DC =An-A0 where n is the desired time point were used. The LFPTEG reference values have been established, and the density of a blood clot at the points t3 (clotting time), t3+5, t3+10, t3+15 min to characterize the dynamics of thrombosis has been calculated. Coagulopathy in rats can be determined by LFPTEG.
References
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