| Abbreviation | Definition |
|---|---|
| PSLE | Prony Spectral Line Estimation |
| PSLL | Patient Safety Learning Laboratories |
| PSLL | Patient Safety Learning Laboratory |
| PSSL | Precision Space Systems Laboratory |
| PT | Prothrombin time |
| pt. | part |
| PT/INR | prothrombin time |
| PT/INR | Prothrombin Time / International Normalization Ratio |
| PTB | Phlebotomy |
| PTCS | Proton Therapy Center Switzerland |
| PTHC | Percutaneous TransHepatic Cholangiography |
| PTM | Potentially Toxic Material |
| PTSIG | Paediatric Transplantation Special Interest Group |
| PTTP | Post-Transfusion Thrombocytopenic Purpura |
| PTX | Pentoxifylline |
| PTZ | PentyleneTetraZole |
| PULL | Pop Up Laboratory Library |
| PULL | Pop Up Living Laboratory |
| PURL | Phoenix Urban Research Laboratory |
| PUVA | Psoralen Ultraviolet Light Therapy |