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26 Jun 2016
When the recipient’s ABO and Rh blood groups are determined, the donor blood unit that is ABO and Rh compatible is selected, and compatibility test is carried out. The purpose…
13 Jun 2016
APTT is a measure of coagulation factors in intrinsic pathway (F XII, F XI, high molecular weight kininogen, prekallikrein, F IX, and F VIII) and common pathway (F X, F…
10 Jun 2016
PT assesses coagulation factors in extrinsic pathway (F VII) and common pathway (F X, F V, prothrombin, and fibrinogen).   PrincipleTissue thromboplastin and calcium are added to plasma and clotting…
08 Jun 2016
BLEEDING TIME The bleeding time test is dependent on appropriate functioning of platelets blood vessels and platelets and evaluates earliest hemostasis (platelets components and vascular). In this test, incision (a…
06 Jun 2016
Thrombin time assesses the final step of coagulation i.e. conversion of fibrinogen to fibrin by thrombin.   PrincipleThrombin is added to patient’s plasma and time required for clot formation is…
06 Jun 2016
This is a newly introduced screening test for platelet function that assesses both platelet adhesion and aggregation. This method uses an instrument called as PFA-100 in which anticoagulated whole blood
06 Jun 2016
Hemostais and Bleeding Disorders Hemostasis or haemostasis (from the Ancient Greek: αἱμόστασις haimóstasis "styptic (drug)") is a process which causes bleeding to stop, meaning to keep blood within a damaged…
25 May 2016
Life history of malaria parasite consists of two cycles of development: asexual cycle or schizogony that occurs in humans and sexual cycle or sporogony that occurs in mosquitoes. Asexual cycle…
13 May 2016
PREPARATION OF BLOOD SMEAR (WEDGE METHOD) (1) A small drop of blood (2-3 mm in diameter) is placed in the center line about 1 cm away from one end of…
13 May 2016
Blood Smear A blood film or peripheral blood smear is a thin layer of blood smeared on a microscope slide and then stained in such a way to allow the…
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