Coagulation screen
Coagulation Screen
A Coagulation Screen (pronunciation: koh-ag-yuh-ley-shuhn skreen) is a series of tests that are performed to assess the blood's ability to clot. These tests are often used to diagnose and monitor bleeding disorders, such as Hemophilia and Von Willebrand Disease, or clotting disorders, such as Deep Vein Thrombosis and Pulmonary Embolism.
Etymology
The term "Coagulation" is derived from the Latin word "coagulare", which means "to curdle". "Screen" in this context is used in its meaning of "to examine or investigate".
Tests Included in a Coagulation Screen
A typical Coagulation Screen includes the following tests:
- Prothrombin Time (PT): This test measures the time it takes for a clot to form in the blood. It is often used to monitor the effectiveness of Warfarin therapy.
- Activated Partial Thromboplastin Time (aPTT): This test measures the time it takes for a clot to form in a sample of blood. It is often used to monitor the effectiveness of Heparin therapy.
- Thrombin Time (TT): This test measures the time it takes for a clot to form after thrombin is added to a sample of blood. It is often used to diagnose Disseminated Intravascular Coagulation (DIC).
- Fibrinogen Level: This test measures the amount of fibrinogen, a protein that is essential for blood clotting, in the blood.
Related Terms
- Hemostasis: The process of stopping bleeding, which involves the formation of a clot.
- Anticoagulant: A substance that prevents blood from clotting.
- Thrombosis: The formation of a blood clot inside a blood vessel, which can block blood flow.
- Hemorrhage: Excessive bleeding.
External links
- Medical encyclopedia article on Coagulation screen
- Wikipedia's article - Coagulation screen
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