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2. Clotting time - Wikipedia

   en.wikipedia.org/wiki/Clotting_time

   There are various methods for determining the clotting time, the prototype historical method being the capillary tube method. [4] It is affected by calcium ion levels and many diseases. The normal range of clotting times is 2-8 minutes. For the measurement of clotting time by the test tube method, blood is placed in a glass test tube and kept ...

3. Prothrombin time - Wikipedia

   en.wikipedia.org/wiki/Prothrombin_time

   Blood is drawn into a test tube containing liquid sodium citrate, which acts as an anticoagulant by binding the calcium in a sample. The blood is mixed, then centrifuged to separate blood cells from plasma (as prothrombin time is most commonly measured using blood plasma). In newborns, a capillary whole blood specimen is used. [2]

4. Thrombin time - Wikipedia

   en.wikipedia.org/wiki/Thrombin_time

   The thrombin time (TT), also known as the thrombin clotting time (TCT), is a blood test that measures the time it takes for a clot to form in the plasma of a blood sample containing anticoagulant, after an excess of thrombin has been added. [1] It is used to diagnose blood coagulation disorders and to assess the effectiveness of fibrinolytic ...

5. OB/GYNs Explain When You Should (and Shouldn’t) Worry ... - AOL

   www.aol.com/ob-gyns-explain-shouldn-t-151600275.html

   This article was medically reviewed by Carolyn Swenson, M.D., an assistant professor of obstetrics and gynecology and member of the Prevention Medical Review Board.. Even though blood clots sound ...

6. Reference ranges for blood tests - Wikipedia

   en.wikipedia.org/wiki/Reference_ranges_for_blood...

   Still, the blood values are approximately equal between the arterial and venous sides for most substances, with the exception of acid–base, blood gases and drugs (used in therapeutic drug monitoring (TDM) assays). [6] Arterial levels for drugs are generally higher than venous levels because of extraction while passing through tissues. [6]

7. Partial thromboplastin time - Wikipedia

   en.wikipedia.org/wiki/Partial_thromboplastin_time

   The partial thromboplastin time (PTT), also known as the activated partial thromboplastin time (aPTT or APTT), is a blood test that characterizes coagulation of the blood.A historical name for this measure is the Kaolin-cephalin clotting time (KCCT), [1] reflecting kaolin and cephalin as materials historically used in the test.