| Sp | Pn, Sp Pnx spontaneous pneumothorax |
|---|---|
| Sp | tap spinal tap |
| SP-A | surfactant protein A |
| SP-B | surfactant protein B |
| sp.gr. | specific gravity; 비중 |
| SP1 | pregnancy-specific β1-glycoprotein |
| SPA | 1) Single Photon Absorptiometry 2) Sperm Penetration Assay |
| SPA | salt-poor albumin; sheep pulmonary adenomatosis; sperm penetration assay; spinal progressive amyotrophy; spondyloarthropathy; spontaneous platelet aggregation; staphylococcal protein A; student progress assessment; suprapubic aspiration; surface polypeptide, anonymous |
| SPACE | single potential analysis of cavernous electrical activity |
| SPAD | stenosing peripheral arterial disease |