Question

why long the alcoholic cotton is placed on the puncture give reason​

Answer 1

Answer:

hope it helps...

Explanation:

Alcohol swabbing before an injection is a long-standing, widely used infection control practice. It's thought that prepping the skin using alcohol swabs removes bacteria that could be pushed into the puncture and might cause an infection

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Answer 2

because,,,,,,,,,,,,,,,,,,,,,,,, don't know