Bleeding Time (BT) & Clotting Time (CT) Test
- Category
- Blood Clotting
- Sample
- Blood sample taken from a vein in your arm
- Reports () Terms & Conditions Report time varies with time of sample collection.
- In 2 days
- Fasting
- No Fasting
- Age
- All Ages
Bleeding Time measures how long a small skin prick takes to stop bleeding; Clotting Time measures how long blood takes to clot in a tube.
Basic screening for bleeding or clotting problems, sometimes before minor procedures. Modern tests such as PT/INR, APTT and platelet count are more precise.
Easy bruising or bleeding, heavy periods, blood clots, before surgery, or people taking blood thinners.
No fasting needed.
This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.
In a medical emergency, call 112, or 108 for an ambulance where that service operates, or go to your nearest emergency department. If you are in mental health distress, Tele-MANAS is free and available 24×7 on 14416.
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Aspirin and some painkillers prolong bleeding time. Do not stop any medicine without asking your doctor, but tell the lab what you take.
No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.
Blood sample taken from a vein in your arm.
Usually within 11–35 hours after the sample reaches the lab. You will receive the report online.