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5 Cards in this Set
- Front
- Back
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Steps of Haemostasis |
1. Vascular spasm 2. Platelet plug formation 3. Coagulation 4. Fibrinolysis |
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Vascular Spasm |
Results from chemicals released by vascular endothelial cells, aided by chemicals released by platelets and in response to pain. Reduces blood flow. Will not help in major breech. |
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Platelet Plug Formation |
1. Vessel endothelium is damaged. 2. Collagen fibers exposed. 3. Platelets change shape, grow pseudopods. 4. Become sticky and knit together to for a plug. 4. Become sticky and knit together to for a plug.5. Short lived. 4. Become sticky and knit together to for a plug.5. Short lived. 4. Become sticky and knit together to for a plug.5. Short lived. 4. Become sticky and knit together to for a plug.5. Short lived. 4. Become sticky and knit together to for a plug.5. Short lived. 5. Short lived. |
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Coagulation |
Activation of 8 proteins that result in a fibrin mesh, which seals the hole, preventing blood loss while the vessel heals. |
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Fibrinolysis |
The breakdown of a clot once healing has occurred. ● plasminogen is incorporated into the forming clot. ●plasmin starts destroying the clot in about 2 days, continues for several days. |
