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===Buccal Mucosal Bleeding Time===
 
===Buccal Mucosal Bleeding Time===
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The buccal mucosal bleeding time is a simple test that gives a rapid assessment of platelet function, providing platelet numbers are normal. If platelet numbers are below 50x10<sup>9</sup>l, this test should not be performed since bleeding may not be as easily stopped.
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The buccal mucosal bleeding time is a simple test that gives a rapid assessment of platelet function, providing platelet numbers are normal. If platelet numbers are below 50x10<sup>9</sup>/l, this test should not be performed since the results will be affected by thrombocytopenia, making them unreliable. The small wound inflicted may also not stop bleeding easily.
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The buccal mucosal bleeding time (BMBT) is one of the only clinically available methods of measuring platelet
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To perform the BMBT test, a standardised device is used to make an incision in the buccal mucosa of the upper lip, and the time between making the incision and the cessation of bleeding is measured<sup>2</sup> During the procedure the lip should be kept turned outwards, with excess blood being gently absorbed without disturbing clot formation a away from the site of the incision. Normally, bleeding should stop within 3 minutes, and a BMBT of greater than 5 minutes is considered prolonged<sup>2</sup>. utes and
function. It is performed by use of a standardized bleeding device to make an incision in the buccal mucosa of the
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upper lip. The duration of time between making the incision and the cessation of bleeding is measured. The upper
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lip is kept turned up (usually by a gauze muzzle) through out the procedure and blood is gently absorbed away
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from the incision without disturbing the clot. A normal BMBT is considered to be approximately 3 minutes and
   
greater than 5 minutes is considered prolonged.
 
greater than 5 minutes is considered prolonged.
 
Abnormalities in platelet function and significant thrombocytopenia (<50,000/microL) will cause prolongations in
 
Abnormalities in platelet function and significant thrombocytopenia (<50,000/microL) will cause prolongations in
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