Can anyone explain MSSA vs MRSA to me?

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Specializes in OB, M/S, HH, Medical Imaging RN.

I have a patient on MSSA precautions. Methicillin Sensitive Staph Aureus. I don't get it. Ok it's sensitive to Methicillin so what's the problem? I've googled with no luck!

Specializes in ICU.

"MRSA may also be known as oxacillin-resistant Staphylococcus aureus (ORSA) and multiple-resistant Staphylococcus aureus, while non-methicillin resistant strains of S. aureus are sometimes called methicillin-susceptible Staphylococcus aureus (MSSA) if an explicit distinction must be made."

Sounds logical to me, maybe.

Here's google scholar articles on MSSA

http://scholar.google.com/scholar?q=MSSA&hl=en&lr=&btnG=Search

And with no acronym.

http://scholar.google.com/scholar?q=methicillin-susceptible+Staphylococcus+aureus&hl=en&lr=&btnG=Search

Specializes in OB, M/S, HH, Medical Imaging RN.
"MRSA may also be known as methicillin-resistant Staphylococcus aureus, while non-methicillin resistant strains of S. aureus are sometimes called methicillin-susceptible Staphylococcus aureus (MSSA) if an explicit distinction must be made."

Sounds logical to me, maybe.

Still makes no sense. It's more like an oxymoron.:crash_com

Specializes in ER, ICU, Infusion, peds, informatics.
i have a patient on mssa precautions. methicillin sensitive staph aureus. i don't get it. ok it's sensitive to methicillin so what's the problem? i've googled with no luck!

i've always seen mssa used to designate a staph infection as not mrsa. meaning no precautions needed, other than the usual (standard) ones.

could it be that someone who designated the need for precautions was confused?

Specializes in OB, M/S, HH, Medical Imaging RN.
i've always seen mssa used to designate a staph infection as not mrsa. meaning no precautions needed, other than the usual (standard) ones.

could it be that someone who designated the need for precautions was confused?

now that makes alot of sense. thanks!

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