Browse Medical Abbreviations

P phosphorus [element]
p melting point; post (after); pulse
P&A percussion and auscultation
P&P pins and plaster
P&R pulse and respiration
P&T peak and trough
P-A posteroanterior; posterior-anterior; placenta abruption
P-ANCA perinuclear antineutrophil cytoplasmic antibody
p.c. after meals (post cibos)
p.m. afternoon/evening (post meridiem)
P/A posterior/anterior
P/U pick up
P2 pulmonic second sound
P4P pay for performance
p: plan
p=r pupils equal and reactive
PA posteroanterior; posterior anterior; Physician Assistant; pernicious anemia; propionic acidemia; pulmonary artery; physical activity
pa placenta abruption
Pa Pascal
PA-C Certified Physician Assistant
PAB professional advisory board
PABA para-aminobenzoic acid (vitamin B10)
PAC premature atrial contraction
Paco2 partial pressure of carbon dioxide in alveolar gas
PACU Post-Anesthesia Care Unit
PAD peripheral arterial disease; pharmacologically active drug
PADP pulmonary artery diastolic pressure
PADS preventive aggression device system
PAF platelet activating factor; paroxysmal atrial fibrillation
PAGE polyacrylamide gel electrophoresis
PAH para-aminohippurate; polynuclear aromatic hydrocarbon
pAH pulmonary arterial hypertension
PAIS partial androgen insensitivity syndrome
PAL peripheral arterial line
palp palpable
PALS pediatric advanced life support
PAMP pathogen-associated molecular pattern
PAN panoramic; peroxyacetyl nitrate; polyarteritis nodosa
pANCA perinuclear ANCA
PaO2 arterial oxygen partial pressure [case sensitive]
PAO2 alveolar oxygen partial pressure [case sensitive]
PAOP pulmonary artery occlusion pressure
Pap Papanicolaou smear
PAP patient assistance programs; peak airway pressure; pulmonary artery pressure
Pap test Papanicolaou test (smear)
Pap. papillary
PAR post anesthesia recovery; patient at risk; paraffin
para paraplegic; woman who has given birth
PARR post anesthesia recovery (room)
part. vic. in divided doses (L. partitis vicibus)
PAS para amino-salicylic acid; para-aminosalicylic acid; periodic acid-Schiff (stain)
PASA para-aminosalicylic acid
PASG pneumatic anti-shock garments
PASP pulmonary artery systolic pressure
pat paroxysmal atrial tachycardia
PAT preadmission testing
path pathology; pathologist
pathol pathological; pathology
PAWP pulmonary artery wedge pressure
PB pudendal block or peripheral blood
pb piggyback
Pb lead [element]
PBA pseudobulbar affect
PBC primary biliary cholangitis; primary biliary cirrhosis
PBF partially breastfed
PBI protein-bound iodine
PBL problem-based learning; peripheral blood lymphocyte
PBM pharmacy benefits management
PBMC peripheral blood mononuclear cell
PBPC peripheral blood progenitor cell
PBS phosphate-buffered saline; peripheral blood smear
PBSC peripheral blood stem cell
PBSCT peripheral blood stem cell transplantation
PBW predicted body weight
PC pyruvate carboxylase; professional corporation; pressure control (ventilator); presenting complaint; packed cells
pc after meals (L. post cibos)
PCA patient care assistant; patient-controlled anesthesia; posterior cerebral artery
PCC prothrombin complex concentrate; Poison Control Center
PCCR post cardiac cath recovery
PCCU post cardiac cath unit
PCD programmed cell death; pneumatic compression device; percutaneous drainage; pacing cardioverter/defibrillator
PCH personal care home
PChE pseudocholinesterase
pCi picocurie
PCI percutaneous coronary intervention
PCKD polycystic kidney disease
PCL polycaprolactone; posterior cruciate ligament
PCM protein-calorie malnutrition
PCN penicillin; primary care network
PCNA proliferating cell nuclear antigen
PCO primary care organization; polycystic ovarian disease
PCO2 carbon dioxide pressure
PCOS polycystic ovary syndrome
PCP primary care physician; pneumocystis carinii pneumonia; phencyclidine (anesthetic/hallucinogenic); primary care provider
PCR protein catabolic rate; patient care record/report; polymerase chain reaction
PCRA patient controlled regional analgesia
PCS procedure coding system; post-concussion syndrome
pct percent
PCT proximal convoluted tubule; patient care technician; photochemical treatment
PCTA percutaneous transluminal angioplasty
PCU Progressive Care Unit
PCV pneumococcal vaccine; packed cell volume
PCWP pulmonary capillary wedge pressure
pd pupillary distance; prism diopter
PD pulmonary disease; provisional discharge; progressive disease; police department; interpupillary distance; peritoneal dialysis; Parkinson disease
Pd palladium [element]
PD&P postural drainage and percussion
PDA posterior descending artery; patent ductus arteriosus
PDD pervasive development disorder
PDD-NOS pervasive developmental disorder not otherwise specified
PDE permitted daily exposure; phosphodiesterase
PDF portable document format
PDGF platelet-derived growth factor
PDH pyruvate dehydrogenase
PDIS patient discharge instruction sheet
PDR Physicians' Desk Reference
PDT photodynamic therapy
PE pulmonary embolism; pulmonary edema; physical examination
PE tubes polyethylene tubes
PEA pulseless electrical activity
PECS picture exchange communication system
PED pediatrician
Peds pediatrics
PEEP positive end-expiratory pressure
PEF peak expiratory flow
PEFR peak expiratory flow rate
PEG percutaneous endoscopic gastrostomy; pneumoencephalogram; polyethylene glycol
PEG INF pegylated interferon
PEJ percutaneous endoscopic jejunostomy
PEM protein energy malnutrition
PEMF pulsing electromagnetic field
pen penicillin
PEP post-exposure prophylaxis; phosphoenolpyruvate; pancreatic enzyme product
per for each; through or by; period(ic)
perf perforation
PERL pupils equal and react to light
perm permanent
peron peroneal
PERRL pupils equally round and react to light
PERRLA pupils equally round and react to light and accommodation
PERRLA+C pupils equal, round, react to light, accommodation ok, and coordinated
PESA percutaneous epididymal sperm aspiration
PET polyethylene terephthalate; positron emission tomography (scan)
PetCO2 partial pressure of end-tidal carbon dioxide
PF plantar flexion; plasmapheresis
PFC persistent fetal circulation; prefrontal cortex; permanent flexure contracture; plaque forming cell (assay)
PFD personal flotation device (life jacket)
PFGE pulsed-field gel electrophoresis
PFIC progressive familial intrahepatic cholestasis
PFK phosphofructokinase
PFO patent foramen ovale
PFP pay for performance
PFS progression-free survival
PFT pulmonary function test
PFTs pulmonary function tests
PG phosphatidylglycerol; pregnant; prostaglandin
pg picogram (one trillionth of a gram)
PGA pteroylglutamic acid
PGC primordial germ cell
PGD pre-implantation genetic diagnosis
PGF paternal grandfather; placental growth factor
PGL persistent generalized lymphadenopathy
PGM paternal grandmother
PGR psychogalvanic reaction
PGY postgraduate year
PH poor health; past history; parathyroid hormone; public health
pH potential of hydrogen; hydrogen ion concentration (measure of acidity/alkalinity)
PHA phytohemagglutinin; public health advisory
Phar. pharmacy
pharm pharmacy
PharmD Doctor of Pharmacy
PHB personal health budget
PhD Doctor of Philosophy
Phe phenylalanine
PHI protected health information
PHN public health nurse
phni pinhole no improvement
PHO Physician Hospital Organization
phos phosphate
PHP pseudohypoparathyroidism; primary health care provider; partial hospitalization program
PHPT primary hyperparathyroidism
PHPV persistent hyperplastic primary vitreous
PHR personal health record; public health research
PHS Public Health Service
PHT public health technician
PI previous illness; present illness; peripheral iridotomy; perfusion index; performance improvement; protease inhibitors; principal investigator
PI3K phosphoinositide 3-kinase
PIA prolonged infantile apnea
PIC peripheral intravenous catheter
PICC peripherally inserted central catheter
PICU psychiatric intensive care unit; pediatric intensive care unit
PID pelvic inflammatory disease
PIE plan, intervention, evaluation; pulmonary interstitial emphysema
PIF peak inspiratory flow; prolactin release-inhibiting factor
PIG pigtail catheter; policy implementation guide
pIgR polymeric immunoglobulin receptor
PIH pregnancy-induced hypertension; prolactin-inhibiting hormone
PII personally identifiable information
pil pill (L. pilula)
pil. pill
PIN prostatic intraepithelial neoplasia
PIP peak inspiratory pressure; proximal interphalangeal
PIP joint proximal interphalangeal joint
PIPJ proximal interphalangeal joint
PIPOT persons in positions of trust
PISA proximal isovelocity surface area
PIT Pitocin
PIV peripheral intravenous
PJC premature junctional contraction
PJP Pneumocystis jiroveci pneumonia
PJS Peutz-Jeghers syndrome
PK test Prausnitz-kustner test
PKA protein kinase A
PKC protein kinase C
PKD polycystic kidney disease
PKR partial knee replacement; photorefractive keratotomy
pks packs
PKU phenylketonuria
PL palmaris longus
PLACE patient-led assessments of the care environment
plats platelets; platelet
PLCV procedures of limited clinical value
PLIF posterior lumbar interbody fusion
PLL postero-lateral left
PLM polarized light microscopy
PLR passive leg raising
PLSS portable life-support system
plt platelet
PM postmortem; polymyositis
pM picomolar
Pm promethium [element]
PM&R physical medicine and rehabilitation
PMD private medical doctor
PMDD premenstrual dysphoric disorder
PMFSH past medical, family, social history
PMH past medical history
PMHx past medical history
PMI point of maximal impulse; private medical insurance; point of maximum impulse
PMID PubMed identifier
PML progressive multifocal leukoencephalopathy
PMM phosphomannomutase
PMN polymorphonuclear neutrophil leukocytes; polymorphonuclear leukocytes
PMNL polymorphonuclear leukocyte
pmol picomole (one trillionth of a mole)
pmol/L picomoles per liter
PMP previous menstrual period
pmp per million population
PMR polymyalgia rheumatica
PMS premenstrual syndrome
PMT premenstrual tension
PMU pain management unit
PN psychoneurotic; product name; prenatal; peripheral neuropathy; parenteral nutrition
PNA pneumonia; partial nail avulsion; percutaneous needle aspiration; personal needs allowance; pharmaceutical needs assessment
PNB premature nodal beats; peripheral nerve block
PNC prenatal care; penicillin; premature nodal complex; premature nodal contraction
PNC-E post-necrotic cirrhosis-ethanol
PND paroxysmal nocturnal dyspnea; post nasal drip
PNDM permanent neonatal diabetes mellitus
PNET primitive neuroectodermal tumor
PNF proprioceptive neuromuscular facilitation
PNH paroxysmal nocturnal hemoglobinuria
PNI peripheral nerve injury
PNP Pediatric Nurse Practitioner
PNS peripheral nervous system
PNV prenatal vitamins
PNX pneumothorax
po by mouth (per os)
PO phone order
PO2 partial pressure of oxygen
POA power of attorney
POAG primary open-angle glaucoma
POC plan of care; point of contact; proof of concept; product of conception
POCT point of care testing
POD postoperative day; post operative day
POE point of entry
POF premature ovarian failure
POLST physician orders for life-sustaining therapy
PONV post-operative nausea and vomiting
POPs progestin-only contraceptive pills
PORP partial ossicular replacement prosthesis
POS point of service; problem oriented system
poss possible
post after
post op post operation
post. posterior
POTS postural orthostatic tachycardia syndrome
POTx proof of treatment
POU placenta, ovary, uterus
PP pulsus paradoxus; pulse pressure; post partum; pancreatic polypeptide; after meal (postprandial); postpartum; placenta previa
PP1 post partum day 1, etc.
PPA phenyl pyruvic acid
PPAR Peroxisome proliferator-activated receptor
ppb parts per billion
PPB positive pressure breathing
PPBG postprandial blood glucose
PPBS postprandial blood sugar
PPD packs per day; paranoid personality disorder; percussion and postural drainage; purified protein derivative (tuberculosis test antigen)
PPE personal protection equipment; personal protective equipment
PPF plasma protein fraction
PPG postprandial glucose
PPH primary pulmonary hypertension; past psychiatric history; postpartum hemorrhage
PPHN persistent pulmonary hypertension of the newborn
PPI proton pump inhibitor; patient package insert
PPIP put prevention into practice
PPM planned preventive maintenance; permanent pacemaker
ppm parts per million
PPMA postpoliomyelitis muscular atrophy
PPN peripheral parenteral nutrition
PPNAD primary pigmented nodular adrenocortical disease
PPO preferred provider organization
PPROM preterm premature rupture of membranes
PPS postpartum sterilization
PPT plasma preparation tube; partial prothrombin time; positive pregnancy test
PPTL post-partum tubal ligation
PPV pneumococcal polysaccharide vaccine; positive predictive value
PPW pre-pregnancy weight
PQRST provoke-quality-radiation-severity-time
PR per rectum; pulmonic regurgitation; pulse rate
Pr praseodymium [element]
PR/R per rectum/rectal
PR3 proteinase 3
PRA plasma renin activity; panel-reactive antibody
PRB performance review board
PRBC packed red blood cell(s)
PRBCs packed red blood cells
PRCA pure red cell aplasia
PRE progressive resistive exercise
pre-op before surgery (pre-operative)
preg pregnancy, pregnant
PREM patient reported experience measure
prep preparation
PrEP pre-exposure prophylaxis
prev prevention; preventive; previous
PRF prolactin-releasing factor
PRH prolactin-releasing hormone
primip primipara
PRINTO Pediatric Rheumatology International Trials Organization
PRIT posterior resection of inferior turbinates
PRK photorefractive keratectomy
PRL prolactin
PRM partial-rebreathing mask
prn as required/needed (L. pro re nata)
PRO peer review organization
pro time prothrombin time
prob probable, probably
PROM passive range of motion; premature rupture of membranes; patient-reported outcome measure
prox proximal
PrP prion protein
PRP polysaccharide-ribitol-phosphate vaccine; platelet-rich plasma; pan retinal photocoagulation
PRQM publicly reported quality measures
PRRT pediatric rapid response team
PRSP penicillin-resistant streptococcus pneumoniae
PRVC pressure regulated volume control
PS pulmonic stenosis; pressure support; pulmonary stenosis
PSA patient support associate; prostate-specific antigen; public service announcement
PsA psoriatic arthritis
PSC primary sclerosing cholangitis
PSCT peripheral stem cell transplant
PSD patient specific direction
PSDA patient self-determination act
PSE portal systemic encephalopathy
PSF posterior spinal fusion
PSG polysomnogram (sleep study)
PSH past surgical history
psi per square inch (pounds)
PSIS posterior-superior iliac spine
PSL peripheral saline lock
PSO patient services office
PSRO professional standards review organization
PSS progressive systemic sclerosis; physiologic saline solution
PSV peak systolic velocity; pressure support ventilation; prostate-specific antigen
PSVT paroxysmal supraventricular tachycardia
psy psychiatry, psychology
psych psychiatry, psychology
psychol psychologist
PT prothrombin time; physical therapy; part time
pt pint; patient
Pt platinum [element]
PTA prior to arrival; prior to admission; plasma thromboplastin antecedent; percutaneous transluminal angioplasty; peritonsillar abscess; pure tone audiometry; physical therapist assistant
PTC papillary thyroid cancer; percutaneous transhepatic cholangiography; plasma thromboplastin component; points to consider
PTCA percutaneous transluminal coronary angioplasty
PTE pulmonary thromboembolism
PTEM pregnancy test education materials
PTFE polytetrafluoroethylene
PTH parathormone; parathyroid hormone
PTK phototherapeutic keratectomy
PTL pre-term labor
PTR platelet transfusion reaction
pts patient, patients
PTSD post-traumatic stress disorder
PTT partial thromboplastin time
PTU propylthiouracil
PTX pneumothorax
Pu plutonium [element]
PU passed urine, peptic ulcer; peptic ulcer
PUBS percutaneous umbilical blood sampling
PUD peptic ulcer disease
PuD pulmonary disease
PUFA polyunsaturated fatty acid
PUJ pelviureteric junction
pul pulmonary
PUL percutaneous ultrasonic lithotripsy
pulm pulmonary
pulv powder (L. pulvis)
PUO pyrexia of unknown origin
PUS prostate ultrasound
PUVA psoralen ultraviolet A
PV polycythemia vera; vaginal (per vagina)
PVC polyvinyl chloride; premature ventricular contraction
PVD peripheral vascular disease
PVE prosthetic valve endocarditis
PVP polyvinylpyrrolidone
PVR peripheral vascular resistance; pulmonary vascular resistance; post-void residual
PVRI Pulmonary Vascular Resistance Index
PVS persistent vegetative state
PVT paroxysmal ventricular tachycardia
PWA person with AIDS
PWB partial weight bearing
PWS Prader-Willi syndrome
Px prognosis
PZA pyrazinamide
PZI protamine zinc insulin