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DIT Heme A&P
Question | Answer |
---|---|
what allows RBCs to change shape as they pass through vessels? | spectrin |
What are some of the different causes of polycythemia? | (excess EPo) RCC, HCC, pheoCC, hemangioblastoma, Down's, Polycythemia Vera, Hypoxia (COPD, OSA, high alt) |
What coag factor is deficient in hemophilia A | VIII |
what coag factor is deficient in hemophilia B | IX |
what clotting factors require vit K for synthesis | 10, 9, 7, 2, protein C, protein S |
Tx for heparin overdose | protamine sulfate |
Tx for warfarin overdose | Vit K and FFP |
lab value used to monitor heparin | PTT |
lab value used to monitor warfarmin | PT/INR |
lab value used to monitor enoxaparin | Factor Xa activity |
Tx for heparin induced thrombocytopenia? | Stop heparin. Lepirudin, Bivalirudin |
cofactor for the activation of antithrombin. decreases thrombin and Xa | heparin |
interferes with gamma carboxlation of vit K dependent lotting factors | Warfarin |
Has effect on extrinsic pathway and increases PT | warfarin |
accelerating factors | V, VIII |
inhibit accelerating factors | protein C and S |
clot buster | plasmin |
converts fibrinogen to fibrin | thrombin |
converts prothrombin to thrombin | Va |
converts Plasminogen to plasmin | kallikrein |
activates extrinsic coagulation pathway | thromboplastin converts VII-->VIIa |
activates intrinsic coagulation pathway | collagen, basement membrane and activated platelets convert XII--> XIIa |
inhibits thrombin and factors IXa, Xa, XIa, and XIIa | antithrombin |
proaggregation | TXA2 |
antiaggregation | PGI2 and NO |
inhibits COX (TXA2 synthesis) | aspirin |
inhibits ADP induced expression of GpIIb/IIIa | Ticlopidine and clopigrel |
inhibits GpIIb/IIIa directl | abciximab |