| 16542-3 | Cannabinoids (confirmatory method) | DRUG/TOX |
| 16543-1 | Cannabinoids in Unknown substance (confirmatory method) | DRUG/TOX |
| 16544-9 | Canrenone (Urine) | DRUG/TOX |
| 16545-6 | Capreomycin | DRUG/TOX |
| 16546-4 | Captopril | DRUG/TOX |
| 16547-2 | Carbamate pesticides (Urine) | DRUG/TOX |
| 16548-0 | carBAMazepine (Urine) | DRUG/TOX |
| 16549-8 | Carbinoxamine (Urine, qualitative) | DRUG/TOX |
| 1655-0 | 11-Deoxy/11-Oxy steroids (Urine) | CHEM |
| 16550-6 | Carbohydrates (Urine) | CHEM |
| 16551-4 | Carbon dioxide, total (Capillary Blood) | CHEM |
| 16553-0 | Carnitine (Tissue) | CHEM |
| 16555-5 | Carnitine (CSF) | CHEM |
| 16556-3 | Carnitine (Amniotic Fluid) | CHEM |
| 16557-1 | Carnosine (Urine, qualitative) | CHEM |
| 16558-9 | Catecholamines --2 hours post XXX challenge | CHAL |
| 16559-7 | Catecholamines --3 hours post XXX challenge | CHAL |
| 1656-8 | 11-Deoxycorticosterone | CHEM |
| 16560-5 | Catecholamines --5th specimen post XXX challenge | CHAL |
| 16561-3 | Catecholamines --6th specimen post XXX challenge | CHAL |
| 16562-1 | Cathartic laxatives (Urine) | DRUG/TOX |
| 16563-9 | Cathepsin D Ag | CHEM |
| 16564-7 | Cefaclor | DRUG/TOX |
| 16565-4 | Cefadroxil | DRUG/TOX |
| 16566-2 | ceFAZolin (Urine) | DRUG/TOX |
| 16567-0 | Cefixime | DRUG/TOX |
| 16568-8 | Cefuroxime IgE Ab | ALLERGY |
| 16569-6 | cefTRIAXone IgE Ab | ALLERGY |
| 1657-6 | 11-Deoxycortisol | CHEM |
| 16570-4 | Centromere Ab (qualitative, immunofluorescence) | SERO |
| 16571-2 | Cephadrine | DRUG/TOX |
| 16572-0 | Cephaloridine | DRUG/TOX |
| 16573-8 | Cerebroside sulfatase (qualitative) | CHEM |
| 16574-6 | Cerebroside sulfatase (Tissue) | CHEM |
| 16575-3 | Cerebroside sulfatase B (Urine) | CHEM |
| 16576-1 | Cerebroside sulfatase B (Amniotic Fluid) | CHEM |
| 16577-9 | Cerebroside sulfatase B | CHEM |
| 16578-7 | Cerebroside sulfatase B (Tissue) | CHEM |
| 16579-5 | Cerebroside sulfatase B (Blood) | CHEM |
| 1658-4 | 11-Hydroxyandrostenedione | CHEM |
| 16580-3 | Cerebroside sulfatase B in leukocytes | CHEM |
| 16581-1 | Chlamydophila pneumoniae IgA Ab (CSF, immunofluorescence) | MICRO |
| 16582-9 | Chlamydophila pneumoniae IgG Ab (CSF, immunofluorescence) | MICRO |
| 16583-7 | Chlamydophila pneumoniae IgM Ab (CSF, immunofluorescence) | MICRO |
| 16584-5 | Chlamydophila pneumoniae rRNA in Sputum (qualitative, probe) | MICRO |
| 16585-2 | Chlamydophila pneumoniae rRNA (qualitative, probe) | MICRO |
| 16586-0 | Chlamydophila psittaci IgA Ab (CSF, immunofluorescence) | MICRO |
| 16587-8 | Chlamydophila psittaci IgG Ab (CSF, immunofluorescence) | MICRO |
| 16588-6 | Chlamydophila psittaci IgM Ab (CSF) | MICRO |
| 16589-4 | Chlamydia sp Ab (immunofluorescence) | MICRO |