Lab Test Directory—Saint Luke's Regional Laboratories
| PROINSUL | Proinsulin |
| PROL | Prolactin, Serum or Plasma |
| PROPOX CONFIRM | Propoxyphene Confirmation, Urine |
| PGE2 U | Prostaglandin E2, Urine |
| REF MISC | Prostaglandins D2 Urine |
| PSA SCREEN | Prostate-Specific Antigen (PSA) Screen, Total, Serum |
| PSA DGN | Prostate-Specific Antigen (PSA), Diagnostic, Serum |
| C PROT IMM | Protein C Antigen |
| PROT C ACT | Protein C, Functional |
| PROT EP U | Protein Electrophoresis, 24 Hour, Urine |