Lab Test Directory—Saint Luke's Regional Laboratories
| FACTOR XII | Coagulation Factor XII (12) Activity |
| FXIII | Coagulation, Factor XIII (13) Screen |
| COBALT | Cobalt, Plasma |
| COCAINEU | Cocaine Confirmation, Urine |
| COCC AB | Coccidioides Ab, Serum |
| COCC CSF | Coccidioides Antibody Panel, CF and ID (CSF) |
| REF MISC | Coccidioides Antigen |
| COQ10 | Coenzyme Q10 |
| COLD AG | Cold Agglutinin Titer, Serum |
| REF MISC | Colistin Susceptibility |