Lab Test Directory—Saint Luke's Regional Laboratories
| FUN ID | Organism Identification, Mold (Fungus) |
| OROTIC U | Orotic Acid |
| REF MISC | Osmolality, Fecal |
| OSMO U | Osmolality, Random, Urine |
| OSMO | Osmolality, Serum or Plasma |
| OSM FRAG | Osmotic Fragility, Erythrocytes |
| OSTEOCAL | Osteocalcin |
| OANDP | Ova + Parasite Exam |
| REF MISC | Ovary Antibody IgG |
| OXALATE BLD | Oxalate, Blood |