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Coagulation Factor Tests Test

Coagulation factor tests measure proteins in your blood that help form clots to stop bleeding. They check if you have too much, too little, or a missing clotting factor, or if a factor isn't working right.

What this test measures

Coagulation factors are proteins in your blood that help form blood clots to stop bleeding when you have an injury. These tests check one or more clotting factors to see if you have too much or too little, are missing a factor, or have a factor that isn't working right.

What your results mean

Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.

Higher-than-normal results

Higher than normal levels of one or more clotting factors may mean you have a disorder that makes your blood clot more than it should. Your provider may recommend medicine and heart-healthy lifestyle changes to help prevent clots. You may also need to avoid hormone replacement therapy for menopause and birth control pills with estrogen, because they may increase the risk of blood clots.

Lower-than-normal results

Lower than normal levels of one or more clotting factors or a missing clotting factor may mean you have a bleeding disorder. Depending on which clotting factors were tested, your results may show the type of bleeding disorder you have and how serious it is.

Frequently asked questions

What are coagulation factors?

Coagulation factors are proteins in your blood that help form blood clots to stop bleeding when you have an injury. They are also called clotting factors.

Why might I need a coagulation factor test?

You may need this test to find out if you have a problem with any of your clotting factors that may cause too little or too much blood clotting. It is also used to check on people who have a known problem with clotting factors or who take blood thinners.

What does a low level of clotting factors mean?

Lower than normal levels of one or more clotting factors or a missing clotting factor may mean you have a bleeding disorder. Depending on which factors were tested, your results may show the type and seriousness of the disorder.

What does a high level of clotting factors mean?

Higher than normal levels of one or more clotting factors may mean you have a disorder that makes your blood clot more than it should. Your provider may recommend medicine and lifestyle changes to help prevent clots.

Can inherited bleeding disorders be cured?

There is no cure for inherited bleeding disorders, but treatment can help manage your condition.

Related lab tests

Sources

Last updated . Information is aggregated from official public sources and is not a substitute for professional medical care.