IM injection on underweight pt

Nurses General Nursing

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Where's the best place to give an IM injection on a very underweight patient?

I work in Home Health and often give B-12 injections. Next week have to give one to a man that's 6'1" and weighs about 125, and I dread it.

Best injection site to use?

I usually would use a tuberculin syringe and put it in their deltoid or buttocks.

Specializes in Critical Care, Capacity/Bed Management.

I would do either ventral glutteal or vastus lateralis with a shorter needle

In school we're taught vastus lateralis for underweight patients.

I would do the deltoid.

Specializes in Pedi.

Just use a smaller needle.

Specializes in Urgent Care NP, Emergency Nursing, Camp Nursing.

With the deltoid, remember that on smaller people you bunch up the muscle by pinching it, rather than pulling to the side to thin out the layer of subcutaneous tissue. While you really can't Z-track using this alternative technique, you're at least sure to be hitting muscle.

Also, the few times I've hit bone with these patients, they really didn't notice - it was freakier for me than it was them. People are wired to notice their skin breaking, not needle pokes to their periosteum.

Periosteum can be very sensitive-- bark your shin on the coffee table and tell me that doesn't hurt much. :)

Best ways to check for pain in decreased level of consciousness are all periosteal-- sternal rub, supraorbital pressure, or my favorite because it doesn't look so nasty in front of patient families, the fingers. You put your (closed) scissors or other flat metal piece like the long parts of a Kelly clamp between the pt's first two fingers, hold the fingers snugly over the metal, and rotate the metal so it impacts the inside of the fingers. Try it on yourself. That's periosteum.

Specializes in Urgent Care NP, Emergency Nursing, Camp Nursing.

That's all blunt, not point like a needlestick.

Specializes in Hospice / Psych / RNAC.
With the deltoid, remember that on smaller people you bunch up the muscle by pinching it, rather than pulling to the side to thin out the layer of subcutaneous tissue. While you really can't Z-track using this alternative technique, you're at least sure to be hitting muscle.

Also, the few times I've hit bone with these patients, they really didn't notice - it was freakier for me than it was them. People are wired to notice their skin breaking, not needle pokes to their periosteum.

Oh really...I did it once and the lady noticed big time. You've hit the bone a few times? Yea, you know that most people I know do notice when they hit their bones. Are you suggesting that when a nurse hits something solid when giving an injection they are only penetrating the periosteum?

In order for the needle to have stopped, it had to hit compact bone . The periosteum is fibrous, but not that fibrous. Especially as one grows older, it thins.

:bookworm:

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