prothrombin test

prothrombin test
prothrombin time. 2. two-stage prothrombin time t.

Medical dictionary. 2011.

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  • two-stage prothrombin test — two stage prothrombin time test (for prothrombin) the quantity of prothrombin can be measured after tissue thromboplastin and excess factor V have converted it to thrombin, by determining the clotting time of a standard fibrinogen solution to… …   Medical dictionary

  • one-stage prothrombin test — one stage prothrombin time test 1. prothrombin time …   Medical dictionary

  • Prothrombin — is a coagulation (clotting) factor. It is needed for the normal clotting of blood. There is a cascade of biochemical events that leads to the formation of the final clot. In this cascade, prothrombin is a precursor to thrombin. Because… …   Medical dictionary

  • 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

  • Prothrombin time — A clotting test, the prothrombin time is done to test the integrity of part of the clotting scheme. The prothrombin time is commonly used as a method of monitoring the accuracy of blood thinning treatment (anticoagulation) with COUMADIN.… …   Medical dictionary

  • test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… …   Medical dictionary

  • prothrombin consumption test — a test formerly much used to measure the formation of intrinsic thromboplastin by determining the residual serum prothrombin after the completion of blood coagulation …   Medical dictionary

  • prothrombin-proconvertin test — a test formerly used in the control of coumarin type anticoagulants, employing a saline extract of brain as a thromboplastin and requiring presence of excess blood coagulation factor V …   Medical dictionary

  • Stypven time test — a prothrombin test similar to the (one stage) prothrombin time, but performed with Russell s viper venom (Stypven) as the thromboplastic agent; useful in defining deficiencies of blood coagulation factor X. Called also Russell s viper venom t. or …   Medical dictionary

  • Quick test — prothrombin time …   Medical dictionary