BTCT Bleeding time Clotting time Test
Also Known As
Test Parameters Included
- Bleeding Time (BT): Measures how quickly the small blood vessels (capillaries) and platelets work together to form a "plug". A prolonged BT often suggests low platelet counts (thrombocytopenia) or poorly functioning platelets.
- Clotting Time (CT): Measures the time required for blood to form a stable fibrin clot. This evaluates the coagulation factors (the proteins in your plasma). A prolonged CT may indicate a deficiency in factors like those seen in hemophilia.
Department
Methodology
Sample Required
Preparation
Schedule Report
6 hours
Emergency Report
Yes
Frequently Asked Questions
Why does the report take 6 hours?
While the test itself is fast, the results must be verified and transcribed by a pathologist to ensure manual observation accuracy.
Does a prick on the earlobe hurt?
It feels like a quick pinch, similar to a standard glucose finger-prick.
Why is Aspirin a problem?
Aspirin "shuts down" platelet activity for about 7 days, which will make your bleeding time look much longer than it truly is.
Can I do this test if I am on my period?
Yes, though you should inform your doctor as hormonal changes can occasionally affect capillary fragility.
What if my BT is high but CT is normal?
This usually points to a platelet issue rather than a clotting factor issue.
Is this test 100% accurate?
It is a great screening tool, but manual tests have some variability; if results are borderline, automated tests like PT/aPTT are recommended.
Why is it done before dental work?
To ensure that once the dentist pulls a tooth, your body can naturally form a clot to stop the bleeding.
Can children have this test?
Yes, it is very common before pediatric surgeries like adenoid removal.
What is "Fibrin"?
Fibrin is the "mesh" your body creates to trap blood cells and form a solid scab or clot.
Can I drink water before the test?
Yes, hydration is fine and makes the blood flow easier.
What causes a prolonged Clotting Time?
Severe vitamin K deficiency, liver disease, or genetic conditions like Hemophilia.
Does the test leave a scar?
No, the incision for BT is extremely tiny and heals completely in a few days.
Is this the same as an INR test?
No. INR is an automated calculation for people on blood thinners; BT-CT is a manual functional test.
Can "liver issues" affect my CT?
Yes, the liver produces almost all your clotting factors; if it’s struggling, your CT will be longer.
Is the test result confidential?
Absolutely. At Dr. Patho, all surgical and hematological data are protected by strict privacy protocols.
Test Description
Test Code
BTCT
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