Bleeding time

5.1.1 Duke method

5.1.1.1 Conditions

Carry out a brief patient history before the incision:

– Have you taken aspirin within the last 48 hours?

– Do you bleed often (e.g. when brushing your teeth)?

– Check that the medical order does not note a patient history of hemophilia.

5.1.1.2  Technique:

– Clean the earlobe with ether or alcohol (leave to dry in the latter case).

– Using a sterile lancet, make a straight horizontal incision about 5 mm long and 1 mm deep.

– Start the chronometer as soon as the first drop of blood appears.

– Every 30 seconds, collect the drops of blood on a sheet of blotting paper without touching the incision.

– Stop the chronometer as soon the blood stops flowing.

– Record the bleeding time.

– The normal value is between 2 and 5 minutes.

5.1.2  3 point Ivy method

 5.1.2.1 Conditions

Same as the Duke method

 5.1.2.2 Technique

– Place the blood pressure cuff on the arm and inflate the sphygmomanometer to 40 mmHg.

– Cleanse the forearm with ether (avoid cleaning over the vein).

– Using a lancet, prick the clean area in 3 points.

– Start the chronometer as soon as the first drop of blood appears.

– Every 30 seconds, collect the drops of blood on a sheet of blotting paper without touching the pricked points.

– Stop the chronometer once the blood stops flowing at 2 points.

– Record the bleeding time.

– The normal value is between 2 and 6 minutes.

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Skin and appendage samples

Subcontracted tests

Manegement of sempling incident

Manegemtn of blood exposure

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