Definition
It is a test to assess Platelet Function and Coagulation Factor Status of the blood.
Methods
There are 2 methods to check bleeding time :
- IVY Method : Take a 1mm deep incision 10mm long on the ventral side of the forearm – Tie blood pressure cuff on the upper arm and raise the pressure to 40mmHg – Calculate time from the start of bleeding till it stops – Use the filter paper to wipe off the blood every 30 seconds (Normal Range – 3 to 10 minutes)
- Duke’s Method : Prick the patient on fingertip or earlobe after swabbing with spirit – take a 3 to 4mm deep prick – Wipe off the blood every 15 seconds with a filter paper – Stop when bleeding stops (Normal Range – 2 to 5 minutes)
Conditions with prolonged bleeding time
- Von Willebrand Disease
- Thrombocytopenia
- Disseminated Intravascular Coagulation
- Bernard Souliers Disease
- Drugs : Aspirin, Warfarin, Heparin
- Hypofibrinogenemia
– Jainam Shah