| OCB (CSF)(Oligoclonal Bands) |
| OCB (Serum) |
| OCB+IgG Index(Oligoclonal Bands) |
| Occult Blood ( X 2 ) |
| Occult Blood ( X 3 ) |
| Occult Blood : |
| OCT3/4 IHC |
| Olear europea (Olive) |
| organic Acid & Acylglycines profile |
| Orotic Acid |
| Osteocalcin |
| Other |
| Other Compositions |
| Oxalate |
| Oxalate/Creatinine (Random) |
| Oxazepam Level |
| Oxcarbazepine |
| Oxycodone |
