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Coagulation Tests

Coagulation tests determine your blood’s ability to clot, and examine that how long it takes to clot. Test results can help doctor to measure your risk of excessive bleeding or developing clots (thrombosis) in your blood vessels.

Coagulation tests are like other blood tests. Side effects and risks are very rare and minimal. A medical professional will take a blood sample and send it to a laboratory for testing.

Purpose of a coagulation test

Clotting disorders can result to a dangerous amount of bleeding or clotting. If your doctor determines you have a clotting disorder, they may suggest one or more coagulation tests.

Conditions that can cause coagulation problems are:

  • Liver disease
  • Thrombophilia
  • Hemophilia

Coagulation tests are useful in taking care of people who take medications that affect clotting ability. Coagulation tests are also sometimes suggested before surgery.

Types of coagulation tests

There are many types of coagulation tests such as:

Complete blood count (CBC)

Your doctor may order a complete blood count (CBC) as part of your routine physical test. The results of the test can help your doctor to know your condition if you have anemia or a low platelet count, which can affect your ability to clot.

Factor V assay

This test measures Factor V, a substance involved in clotting.

Fibrinogen level

This test measures how much fibrinogen is in your blood. Fibrinogen is a protein made by your liver.

Prothrombin time (PT or PT-INR)

Prothrombin is also a protein your liver produces. The prothrombin time (PT) test determines how well and how long it takes your blood to clot.

Platelet count

Platelets are cells in the blood that help your blood clot. This test also helps to know the  condition better.

Thrombin time

Thrombin time helps to know how well fibrinogen is working. Abnormal results may be because of inherited fibrinogen disorders, liver disease, some cancers, and medications that affect clotting.

What preparation do we need for the test?

Coagulation tests are like any other blood test so no preparations are needed before the test. The test can be easily conducted in any lab or blood testing centre. You generally don’t need any special preparations for a Coagulation tests test. Your doctor will let you know if there are any special instructions to follow.

Authenticated by:

Dr. Gaurav Sharma

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