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By an insulin syringe "100 i.u." and after adding the distilled water to the powder in the vial- usually 5ml- you take 1ml"10 units by insulin syringe "of the suspension then dilute it by distilled plain water up to 10ml" 100 unit"

then empty the syringe down to 1ml again"10 units"....

repeat the previous step 3 times more to dilute the content of the syringe 1/10000

then inject 1ml"10 units" of diluted solution subcutaneous and wait for 15 minutes..

the test is positive" the patient has allergy to penicillin" if there is a wheal more than 0.5 cm...

i hope i could help you :-)

Dr. Ahmed Samir ElBehwashy

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11y ago
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Q: What is the correct procedure for penicillin skin test?
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