PTT Blood Test
This test measures how long it takes your blood to clot.
This test measures how long it takes your blood to clot.
- Your healthcare provider may order this test to help determine your blood's ability to clot. It may also be done to monitor the effect of heparin, a drug used to interfere with clotting. It is often ordered to try to find out why someone has a tendency to bleed.
- Heparin can be prescribed for patients who have had a heart attack or a blood clot.
- If the risk of developing a blood clot is high, heparin is often used to prevent a clot from forming.
- Other anti-clotting medications are monitored with tests other than PTT. Some anti-clotting medications do not require ongoing monitoring.
In an adult, the blood sample is usually taken by placing a needle in a vein in the arm or by pricking a finger.
- No special preparation is needed.
- Tell your healthcare provider about the medicines you are taking. Some medicine can interfere with the test.
- Ask your healthcare provider if you need to stop taking any medicines before the test. Do not stop taking any medicine unless your healthcare provider tells you to do so.
- The costs in this care path do not include the charge to draw blood from a vein (venipuncture). There will only be one charge to draw blood, even if multiple tests are being performed on the samples that are taken.
What should I ask my healthcare provider before having this test?
- What is the reason for the test? Will the test results change my treatment plan? If not, do I need the test?
- Should I be taking a different anti-clotting medication? If so, should I be monitored with a different test?
Source UHC.com
Also known as:
PTT Blood TestPartial Prothrombin TimeLaboratory WorkClotting Time
This test measures how long it takes your blood to clot.
- Your healthcare provider may order this test to help determine your blood's ability to clot. It may also be done to monitor the effect of heparin, a drug used to interfere with clotting. It is often ordered to try to find out why someone has a tendency to bleed.
- Heparin can be prescribed for patients who have had a heart attack or a blood clot.
- If the risk of developing a blood clot is high, heparin is often used to prevent a clot from forming.
- Other anti-clotting medications are monitored with tests other than PTT. Some anti-clotting medications do not require ongoing monitoring.
In an adult, the blood sample is usually taken by placing a needle in a vein in the arm or by pricking a finger.
- No special preparation is needed.
- Tell your healthcare provider about the medicines you are taking. Some medicine can interfere with the test.
- Ask your healthcare provider if you need to stop taking any medicines before the test. Do not stop taking any medicine unless your healthcare provider tells you to do so.
- The costs in this care path do not include the charge to draw blood from a vein (venipuncture). There will only be one charge to draw blood, even if multiple tests are being performed on the samples that are taken.
What should I ask my healthcare provider before having this test?
- What is the reason for the test? Will the test results change my treatment plan? If not, do I need the test?
- Should I be taking a different anti-clotting medication? If so, should I be monitored with a different test?
Source UHC.com
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