| Abbreviation | Definition |
|---|---|
| PEL | Permissible Exposure Limit |
| PEM | Pediatric Emergency Medicine |
| PEM | Pediatric Epilepsy Monitoring |
| PEM | Positron Emission Mammography |
| PEMFT | Pulse Electro-Magnetic Field Therapy |
| PEMG | PolyElectroMyoGraphy |
| PEMR | Portable Electronic Medical Record |
| PEMS | Patient Evaluation Management Service |
| PEMS | Percutaneous Electrical Muscle Stimulator |
| PEMU | Pediatric Epilepsy Monitoring Unit |
| PEN | Parenteral and Enteral Nutrition |
| PEOC | Princess Elizabeth Orthopaedic Centre |
| PERC | Pulmonary Embolism Rule-out Criteria |
| PERRLA | Pupils Equal, Round, and Reactive to Light and Accommodation |
| PES | Prospective Evaluation Synthesis |
| PESS | Pessary |
| PET | Partial Exchange Transfusion |
| PET | Peritoneal Equilibration Test |
| PET | Pre-Eclamptic Toxaemia |
| PET | Psychiatric Emergency Team |