why do nurses and physicians use 70% alcohol to wipe the skin before giving an injection?

Answer 1

Alcohol sterilises the site of injection. It is cheap.

Answer 2

In order to prevent infections form occuring. If you would inject people without first cleanign the area, it is possible that bacteria or other substances from the skin's surface may be pushed into the interior of the body with the needle, so they try to prevent this by swabbing the area with alcohol. The alcohol doesnt get rid of the bacteris, but it effectually kills them, which means that they wont be able to replicate once in the body.
Hope this helps

Answer 3

Alcohol sterilises the skin. Your skin is very dirty even though you take showers. There is so much on your skin you don't know about. If something is going in your body it has to be clean. Also doctors don't want you to get a infection from the needle.

Answer 4

70 percent alcohol is bactericidal.wiping the skin removes the bacteria from the skin and prevents bacteria being injected into the tissues

Answer 5

In order to prevent infections due to bacteria on the injection site.

Answer 6

To sterilise the site of injection and thus prevent infection, when the skin is punctured.

Answer 7

To reduce the number of bacteria on the skin that could get transported inside the body by the needle.

Answer 8

I've always found it very interesting that they swab the site on the arm of a person who is sentenced to die by leathal injection. Infection is the least of their worries.

Answer 9

This is the most bacteriocidal percentage.