that the out-of-state, reference lab is approved by the state agency and comply with state require - ments for specimen collection, identification, examination, quality control, and test reporting. Of course, there are usually exemptions to such rules; for example, Pennsylvania state law does
PRN (Pro re nata) is a Latin term which means âin the circumstancesâ. When used in the medical field, PRN means âas the situation arisesâ or âas neededâ. PRN is typically used by doctors when writing a prescription. SHARE.
Answers. Best Answer: RTC means return to clinic and PRN is an acronym in latin for pro re nata which in English translate to as needed. So RTC PRN in your doctor's note means - return to clinic as needed. Source(s): dijon Â· 8 years ago.