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Medical Abbreviation
Abbreviations commonly used in medical terminology
Term | Definition |
---|---|
PACU | post-anesthesia care unit |
SOB | shortness of breath |
CTA | clear to auscultation (normal lung sounds) |
WNL | within normal limits |
PERRLA | pupils are equal, round, and reactive to light and accomodation |
Sig | instructions, short for "signa", from the Latin, for "label" |
NPO | nil per os (nothing by mouth) |
IM | intramuscular |
PRN | as needed, from the Latin phrase "per re nato", which means "as the need arises" |
QID | four times daily, from the Latin phrase, "quarter in die", which means "four in a day" |
QHS | at night, from the Latin phrase, "quaque hora somni" which means "each night at the hour of sleep" |