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  2. Pro re nata - Wikipedia

    en.wikipedia.org/wiki/Pro_re_nata

    Generally abbreviated to "P.R.N." or "PRN", pro re nata refers to the administration of prescribed medication whose timing is left to the patient (in the case of patient-controlled analgesia), nurse, or caregiver, as opposed to medication that is taken according to a fixed (primarily daily) schedule (a.k.a. "scheduled dosage").

  3. List of abbreviations used in medical prescriptions - Wikipedia

    en.wikipedia.org/wiki/List_of_abbreviations_used...

    p.r.n., PRN pro re nata: as needed PRN is pertactin, a virulence factor of the bacterium that causes pertussis: pt. perstetur: continue pulv. pulvis: powder p.v., PV per vaginam: vaginally q quaque: every, per q.1 h, q.1° quaque 1 hora: every 1 hour (can replace 1 with other numbers) q4PM at 4:00 pm (can replace 4 with other numbers)

  4. Passenger name record - Wikipedia

    en.wikipedia.org/wiki/Passenger_name_record

    A passenger name record (PNR) is a record in the database of a computer reservation system (CRS) that contains the itinerary for a passenger or a group of passengers travelling together. The concept of a PNR was first introduced by airlines that needed to exchange reservation information in case passengers required flights of multiple airlines ...

  5. List of medical abbreviations: P - Wikipedia

    en.wikipedia.org/wiki/List_of_medical...

    prn PRN: as necessary (from Latin pro re nata) (if used in chronic pain control, sometimes disparagingly termed "pain relief nil") as needed Prog: prognosis PROM: prelabor rupture of membranes partial range of motion [1] PRP: panretinal photocoagulation platelet-rich plasma progressive rubella panencephalitis: PRRE: purine-rich response element PRV

  6. Record locator - Wikipedia

    en.wikipedia.org/wiki/Record_locator

    In airline reservation systems, a record locator is an alphanumeric code used to identify and access a specific record on an airline’s reservation system. An airline’s reservation system automatically generates a unique record locator whenever a customer makes a reservation or booking, commonly known in the industry as an itinerary.

  7. List of GPS satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_GPS_satellites

    Samples of three GPS satellites' orbits over a five-year period (2013 to 2018) USA-242 · USA-239 · USA-151 · Earth As of 19 December 2024, 83 Global Positioning System navigation satellites have been built: 30 are launched and operational, 1 is launched and undergoing the commissioning process, 3 are in reserve or testing, 43 are retired, 2 were lost during launch, and 1 prototype was never ...

  8. GPS signals - Wikipedia

    en.wikipedia.org/wiki/GPS_signals

    For PRN numbers 64 to 210 they are truncated Gold codes generated by combining 2 LFSR outputs (and , where is the PRN number) whose initial state varies. S1 i {\displaystyle {\text{S1}}_{i}} has one of the 4 feedback polynomials used overall (among PRN numbers 64–210).

  9. PRN - Wikipedia

    en.wikipedia.org/wiki/PRN

    Pertactin (PRN), a virulent factor of the bacterium Bordetella pertussis Pro re nata ( P.R.N. ), Latin for "in the circumstances", prescription jargon PRN Forum , a precursor to the Journal of Pain and Symptom Management