PO means taking a pill or liquid by mouth.
By Mouth = Per Oral in Latin
Another medical meaning could be post operative (after an operation) which is also originally latin: post operationem.
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Latin once served a greater role on prescriptions when they were first written in the 1400s. Spread widely by Roman soldiers and traders, Latin was the main language of Western Europe for hundreds of years. It was unlikely to change, because it was a "dead" language, and it was unlikely to be misinterpreted, because it was exact in its meaning. Patients who didn't know Latin probably didn't have the slightest idea what they were taking. Today, the only part of a prescription where Latin still appears is in the directions for taking the drug. This use has become a kind of medical shorthand between doctors and pharmacists. Some of these abbreviated terms have the potential to cause medication errors because they look so similar in handwriting, so their use is slowly on the decline.
Depending on context, POS can stand for Point of Service, or Place of Service, an abbreviation used on medical insurance claims; or it may stand for "positive."
take once in the morning
On a prescription, it means 1 by mouth (orally).
PO means is a Latin abbreviation for "by mouth" and HS is a Latin abbreviation for "at night" so that the medication by mouth at night.
I am not sure exactly what you are asking but in medical terms "p o" means by mouth or orally.
PO means by mouth. This medical abbreviation, which is also written as: p.o. or po (lower case), comes from Latin "per os".
Usually it's written "po pc," which means "by mouth after meals."
x = 10 (mg, g, etc) PO = per os (by mouth)
i po q am
PO is the medical abbreviation for by mouth. When a doctor prescribes something as one tab po daily, it means you are to take one tablet daily by mouth.
PO means by mouth. This medical abbreviation, which is also written as: p.o. or po (lower case), comes from Latin "per os".
no medical term with fldr abbreviation
The term "PO TID" on a doctor's prescription or order would mean: "by mouth, three times daily". PO means by mouth. This medical abbreviation, which is also written as: p.o. or po (lower case), comes from the Latin phrase "per os". The term TID means three times daily, or three times per daily. This medical abbreviation, which is also written as: t.i.d. or tid (lower case), comes from the later phrase "ter in die".