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A 34-year-old member asked:

How do you give a flu shot?

2 doctor answers6 doctors weighed in
Dr. James Ferguson
Pediatrics 46 years experience
Into muscle: The trivalent inactivated vaccine for flu (flu shot) is injected into a muscle using a 22-25 gage(thin) needle 1 to 1 1/2 inch long. Site selection varies but is usually outer arm, deltoid region for older kids & adults, thigh in infants.
Dr. Andrew Oswari
Family Medicine 24 years experience
Needle size: Good point on the length of the needle. I have seen offices use the 5/8" needle which is way too short to get into the muscle. You must use at least a 1" needle depending on the person you are injecting.

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Last updated Sep 28, 2016

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