Medical dictionary. 2011.
extrinsic pathway of coagulation — the mechanism that produces fibrin following tissue injury, beginning with formation of an activated complex between tissue factor and activated factor VII and leading to activation of factor X, which induces the reactions of the common pathway… … Medical dictionary
intrinsic pathway of coagulation — a sequence of reactions leading to fibrin formation, beginning with the contact activation of factor XII, followed by the sequential activation of factors XI and IX, and resulting in the activation of factor X, which in activated form initiates… … Medical dictionary
coagulation cascade — the series of steps beginning with activation of the intrinsic or extrinsic pathways of coagulation, or of one of the related alternative pathways, and proceeding through the common pathway of coagulation to the formation of the fibrin clot; each … Medical dictionary
Coagulation — This article is about blood clotting. For other meanings see Coagulation (disambiguation). Coagulation is a complex process by which blood forms clots. It is an important part of hemostasis, the cessation of blood loss from a damaged vessel,… … Wikipedia
Coagulation screen — A combination of screening laboratory tests, designed to provide rapid non specific information, which allows an initial broad categorization of haemostatic problems. The basic screen consists of: platelet count bleeding time for platelet… … Wikipedia
coagulation pathways — see common p. of coagulation, extrinsic p. of coagulation, and intrinsic p. of coagulation. Coagulation pathway overview … Medical dictionary
Disseminated intravascular coagulation — or Disseminated intravascular coagulopathy Classification and external resources Micrograph showing a thrombotic microangiopathy, as may be seen in DIC. Kidney biopsy. PAS stain … Wikipedia
factor — 1. One of the contributing causes in any action. 2. One of the components that by multiplication makes up a number or expression. 3. SYN: gene. 4. A vitamin or other essential element. 5. An event, characteristic, or other definable entity that … Medical dictionary
Antiphospholipid syndrome — Classification and external resources Micrograph showing an advanced thrombotic microangiopathy, as may be seen in ALPA syndrome. Kidney biopsy. PAS stain … Wikipedia
Prothrombin time — The prothrombin time (PT) and its derived measures of prothrombin ratio (PR) and international normalized ratio (INR) are measures of the extrinsic pathway of coagulation. They are used to determine the clotting tendency of blood, in the measure… … Wikipedia
