What does PRN stand for?

What does PRN mean?

PRN	Physicians' Research Network Medical » Oncology
PRN	Pseudo-Random Noise Academic & Science » Electronics
PRN	Pro Re Nata (As Needed) Medical » Hospitals
PRN	Pseudo-Random Number Academic & Science » Mathematics
PRN	Packaging Recovery Notes Business » General
PRN	Premier Retail Networks Business » Firms
PRN	Pristina, Yugoslavia Regional » Airport Codes
PRN	Puerto Rican Cement, Inc. Business » NYSE Symbols
PRN	Printer driver Computing » File Extensions
PRN	Lotus or Symphony Text file Computing » File Extensions
PRN	Prince Rogers Nelson Community » Famous
PRN	Packaging Recycling Notes Miscellaneous » USPS
PRN	Postal Routed Network Miscellaneous » USPS
PRN	PRiNter output file Computing » File Extensions
PRN	Pill Right Now Miscellaneous » Funnies
PRN	Puerto Rican Nationalist Governmental » FBI Files
PRN	Page Reference Number Community » Media
PRN	Problem Report Number Computing » General
PRN	Plan de Reorganización Nacional International » Guatemalan
PRN	Practice Reporting Network Community » Media
PRN	Pro Re Nata (As Needed) Medical » Oncology
PRN	Pro Re Nata (As Needed) Medical » Physiology
PRN	Pseudo-Range Node Computing » Telecom
PRN	Pro Re Nata (As needed) Governmental » FDA
PRN	Professional Research Network Business » Professional Organizations

as needed, as required, pro re nata, PRN(adverb): according to need (physicians use PRN in writing prescriptions)