| PSPB | Pregnancy specific protein B |
|---|---|
| PSQI | Pittsburg Sleep Quality Index |
| PSR | Proliferative sickle retinopathy |
| PSR | Protein Synthesis Rate |
| PSR | pulmonary stretch receptor |
| PSR | poly-synaptic reflex |
| PSRO | Professional Standards Review Organization |
| PSS | K(+)-physiological salt solution |
| PSS | Perceived Stress Scale |
| PSS | Physiological saline solution |