Standard vaccine injections don't work as well for the obese

Maggie Koerth-Baker at 6:20 PM February 8, 2010

Standard vaccine injections, done with a 1-in.-long needle, aren't as effective in obese patients. Instead, they need a longer needle to get the same level of immune response. Researchers aren't sure why, but it's possible that fat prevents shorter needles from delivering the vaccine directly into muscle, where it has better access to immune cells.(Via Ivan Oransky.)

13 Comments Add a comment

Boondocker #1 18:41 on Mon, Feb. 8 Reply

I was kind of surprised to see 22 as the sample size in study that could have (it seems to me) easily had many more participants. The Reuters article doesn't mention what their criteria was for determining if someone was 'obese' either.

Moar info plz?

Not a Doktor #2 18:51 on Mon, Feb. 8 Reply

Well it turns out arm flab is more than embarrasing. Thanks Science!

aeon #3 19:00 on Mon, Feb. 8 Reply

They obviously aren't following The Fat Man's advice on needle selection...

http://en.wikipedia.org/wiki/The_House_of_God#Laws_of_the_House_of_God

noahpoah #4 19:20 on Mon, Feb. 8 Reply

Science is obesist!

Anon #5 19:25 on Mon, Feb. 8 Reply

Any nurse could have told them that a longer needle is needed for intramuscular injections for obese people. Duh.

Anne K. #7 20:25 on Mon, Feb. 8 Reply

That makes me feel great about getting my flu & H1N1 shots today. Being fat sucks.

SkullHyphy #8 20:28 on Mon, Feb. 8 Reply

All this and more in the new medical journal "Duh."

holtt #9 20:53 on Mon, Feb. 8 Reply

As Fark would say, "Meanwhile, no cure for cancer"

Anon #10 05:54 on Tue, Feb. 9 Reply

#5, not just any nurse but any nursing STUDENT. -- former R.N.

Anon #11 10:50 on Tue, Feb. 9 Reply

Nurses at the outpatient clinic where I work have reported this problem. They have unofficially developed a protocol of using their free hand to press hard against the area where they are going to give the shot in order to compress or displace the fat to give the standard-size needle a chance to reach the muscle. They report that this is especially necessary for shots in hip/butt area.

There have been many articles lately about the need for specialized medical equipment for super-sized patients. Will they eventually need to provide bigger, extra-scary-looking needles, too?

Jerril #12 11:58 on Tue, Feb. 9 Reply

Next, they'll come out with a study based on 22 patients showing that surgeons operating on obese patients may need longer surgical instruments. Researchers aren't sure why, but it's possible that fat prevents shorter instruments from reaching the patients internal organs.

*facepalm*

On behalf of us fat people: Duh.

MichaelRN #13 12:14 on Tue, Feb. 9 Reply

In other news, federally funded study reveals that foul odor from swine farms is linked to pig shit.

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