List of medical abbreviations: P
| Abbreviation | Meaning |
|---|---|
| p | after (from Latin post) [letter p with a bar over it] |
| P | parturition (total number of live births) phosphorus pulse post |
| POSM | plasma osmolality |
| PA | posterior–anterior, posteroanterior pulmonary artery physician assistant psoriatic arthritis primary aldosteronism |
| P&A | percussion and auscultation |
| PAC | premature atrial contraction pulmonary artery catheter, pulmonary artery catheterisation |
| PACU | Post-Anesthesia Care Unit |
| PAD | peripheral artery disease (aka peripheral artery occlusive disease) postadmission day (e.g. PAD 6 equals the sixth day of being in hospital) peripheral airspace disease Passively Acquired anti-D |
| PAF | platelet activating factor paroxysmal atrial fibrillation (meaning intermittent AF) |
| PAH | pulmonary arterial hypertension phenylalanine hydroxylase |
| PAI-1 | plasminogen activator inhibitor 1 |
| PAL | posterior axillary line |
| PALS | Pediatric Advanced Life Support (training program) |
| PAN | polyarteritis nodosa |
| PAO | peak acid output |
| PAOD | peripheral artery occlusive disease |
| PAP | Papanicolaou stain positive airway pressure pulmonary artery pressure (see pulmonary hypertension) pulmonary alveolar proteinosis |
| Pap | Papanicolaou test (pap smear) |
| PAPP-A | pregnancy-associated plasma protein A |
| PARA I | indicating a woman with one child (partus = birth) |
| PARA II | indicating a woman with two children (partus = birth) |
| PAT | paroxysmal atrial tachycardia |
| PBC | primary biliary cirrhosis |
| PBX | probiotics |
| PBF | peripheral blood film |
| p.c. | after food (from Latin post cibum) after meals |
| PCA | patient-controlled analgesia |
| PCa | prostate cancer |
| PCD | postconcussional disorder primary ciliary dyskinesia |
| PCI | percutaneous coronary intervention |
| PCIOL | posterior chamber intraocular lens |
| PCL | posterior cruciate ligament |
| PCN | penicillin |
| PCNSL | primary CNS (central nervous system) lymphoma |
| PCO | polycystic ovary (see polycystic ovarian syndrome) |
| PCOS | polycystic ovarian syndrome |
| PCP | Pneumocystis carinii pneumonia (now called Pneumocystis pneumonia) primary care physician (also called primary care provider) |
| PCR | patient care report polymerase chain reaction |
| PCS | post-concussion syndrome |
| PCT | progesterone challenge test |
| PCV | packed cell volume (see hematocrit) polycythemia vera |
| PCWP | pulmonary capillary wedge pressure |
| PD | Parkinson's disease peritoneal dialysis physical diagnosis personality disorder program director |
| PDA | patent ductus arteriosus posterior descending artery |
| PDD | premenstrual dysphoric disorder |
| PDE | phosphodiesterase |
| PDGF | platelet-derived growth factor |
| PDR | Physicians' Desk Reference[(Profilarative Diabetic Retinopathy)] |
| PDT | photodynamic therapy |
| PDVT | postoperative deep-vein thrombosis |
| PE | pulmonary embolism pre-eclampsia physical examination |
| PEA | pulseless electrical activity |
| PEARL | pupils equal and reactive to light |
| PEB | cisplatin, etoposide, and bleomycin (chemotherapy regimen) |
| PEEP | positive end expiratory pressure |
| PEF | peak expiratory flow |
| PEFR | peak expiratory flow rate |
| PEG | percutaneous endoscopic gastrostomy |
| PEM | protein/energy malnutrition (aka Kwashiorkor) |
| pen | penicillin (Best practice is to avoid drug name abbreviations) |
| PEP | postexposure prophylaxis |
| PERRL | pupils equal, round, reactive to light |
| PERLA | pupils equal and reactive to light and accommodation |
| PERRLA | pupils equal, round, reactive to light and accommodation |
| Per Vag | per vagina |
| PET | positron-emission tomography (cerebral metabolic scan) |
| PFO | patent foramen ovale |
| PFT | pulmonary function test (see spirometry) |
| PGCS | Paediatric Glasgow Coma Scale |
| PH | Pulmonary hypertension Past history (see also medical history) |
| PHx | past history (see also medical history) |
| PHN | postherpetic neuralgia |
| PHP | Partial Hospitalization Program |
| PHQ | Patient Health Questionnaire |
| PHTLS | prehospital trauma life support |
| PI | present illness |
| PICC | peripherally inserted central catheter |
| PID | pelvic inflammatory disease prolapsed intervertibral disc |
| PIG-A | phosphatidyl inositol glycan A |
| PIH | pregnancy induced hypertension |
| PIP | proximal interphalangeal joint |
| PJS | Peutz-Jeghers syndrome |
| PK | protein kinase |
| PKA | protein kinase A |
| PKD | polycystic kidney disease |
| PKP | Penetrating Keratoplasty |
| PKU | phenylketonuria (PKU card—see Guthrie test) |
| PLAT | tissue plasminogen activator |
| PLIF | posterior lumbar interbody fusion (a type of spinal fusion) |
| PLT | platelets |
| PM | post meridiem (in the afternoon) |
| PMB | post-menopausal bleeding (bleeding after menopause) |
| PMD | primary medical doctor |
| PMDD | premenstrual dysphoric disorder |
| PMH | past medical history (see also medical history) perimesencephalic subarachnoid hemorrhage |
| PMI | point of maximal impulse or apical beat point of maximal intensity |
| PML | polyoma virus progressive multifocal leukoencephalopathy |
| PMP | Pseudomyxoma peritonei |
| PMN | polymorphonuclear leukocytes, that is, neutrophils |
| PMR | percutaneous myocardial revascularization polymyalgia rheumatica proportionate mortality rate |
| PM&R | physical medicine and rehabilitation |
| PMS | premenstrual syndrome |
| PNA | pneumonia |
| PNA | postnatal age |
| PND | paroxysmal nocturnal dyspnea postnasal drip |
| PNET | primitive neuroectodermal tumor |
| PNH | paroxysmal nocturnal hemoglobinuria |
| PNM | perinatal mortality |
| PNV | Prenatal vitamin |
| PO | by mouth, that is, orally (from Latin per os) |
| POA | (Health Care) Power of Attorney |
| POC | postoperative care products of conception Plan of Care |
| POD | postoperative days |
| poly | polymorphonuclear cells, that is, neutrophils |
| POP | pain on palpation, Plaster of Paris |
| Post | posterior (see anatomical terms of location) |
| POT | plan of treatment |
| POX | peroxidase |
| PP | pulse pressure postpartum, that is, postnatal |
| PPCS | prolonged post-concussion syndrome |
| PPD | packs per day (cigarettes) postpartum depression, that is, postnatal depression purified protein derivative or Mantoux test, for tuberculosis testing |
| PPF | posterior pharyngeal flap |
| PPH | postpartum haemorrhage primary pulmonary hypertension procedure for prolapse and hemorrhoids |
| PPI | proton pump inhibitor |
| PPROM | preterm premature rupture of membranes |
| PPS | post-polio syndrome |
| Ppt | precipitate precipitating |
| PPTCT | prevention of parent-to-child transmission [of HIV] (government of India initiative) |
| PPTL | postpartum tubal ligation |
| PPTP | Pediatric preclinical testing program |
| PPV | positive predictive value |
| PPx | prophylaxis |
| PR | prothrombin ratio |
| p.r. | per rectum (as noun: rectal examination) |
| PRA | plasma renin activity |
| PRBC PRBCs | packed red blood cells |
| PREA | Pediatric Research Equity Act |
| Preme | premature infant (see premature birth) |
| Prep | preparation |
| PRES | Posterior reversible encephalopathy syndrome |
| PRIND | prolonged reversible ischemic neurologic deficit |
| PRL | prolactin |
| 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 | premature rupture of membranes |
| PRP | panretinal photocoagulation progressive rubella panencephalitis |
| PRV | polycythemia rubra vera (see polycythemia vera) |
| PSA | prostate-specific antigen |
| PSC | Primary sclerosing cholangitis |
| PSGN | poststreptococcal glomerulonephritis |
| PSH | psychosocial history Past medical history (see also medical history) |
| PSI | Pneumonia severity index |
| PSP | phenylsulphtalein |
| PSS | progressive systemic sclerosis (see scleroderma) |
| PSVT | paroxysmal supraventricular tachycardia |
| PT | prothrombin time physical therapy (physiotherapy) |
| Pt. | patient (from Latin patiens, meaning “one who endures” or “one who suffers”) |
| PTA | percutaneous transluminal angioplasty post-traumatic amnesia prior to admission |
| PTB | pulmonary tuberculosis |
| PTC | percutaneous transhepatic cholangiography |
| PTCA | percutaneous transluminal coronary angioplasty |
| PTD | prior to discharge preterm delivery |
| PTH | parathyroid hormone |
| PTHC | percutaneous transhepatic cholangiography |
| PTL | preterm labor |
| PTSD | posttraumatic stress disorder |
| PTSS | posttraumatic stress syndrome (see posttraumatic stress disorder) |
| PTT | partial thromboplastin time |
| PTU | propylthiouracil |
| PTx | pneumothorax |
| PUS | palindromic units |
| PUBS | percutaneous umbilical blood sample |
| PUD | peptic ulcer disease |
| PUO | pyrexia of unknown origin |
| PUVA | psoralen UV A (photochemical ultraviolet light A waves) |
| p.v. | per vagina (as noun: vaginal examination with manual examination and speculum inspection) |
| PVC (VPC) | premature ventricular contraction |
| PVD | peripheral vascular disease |
| PVFS | post-viral fatigue syndrome |
| PVI | Peripheral Vascular Insufficiency Pulmonary Vein Isolation |
| PVR | pulmonary vascular resistance |
| PVS | persistent vegetative state pulmonary valve stenosis Plummer-Vinson syndrome |
| PWP | pulmonary wedge pressure |
| Px px | physical examination |
| Px | prognosis |
| P-Y | pack-years (years of smoking multiplied by average number of packs, or fraction thereof, per day) |
| PZA | pyrazinamide |
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