| 1659-2 | 11-Hydroxyandrosterone (Urine) | CHEM |
| 16590-2 | Chlamydia sp Ab (complement fixation) | MICRO |
| 16591-0 | Chlamydia sp IgG Ab (CSF, immunofluorescence) | MICRO |
| 16592-8 | Chlamydia sp IgM Ab (CSF, immunofluorescence) | MICRO |
| 16593-6 | Chlamydia sp Ag (Urine, qualitative) | MICRO |
| 16594-4 | Chlamydia trachomatis IgA Ab (CSF, immunofluorescence) | MICRO |
| 16595-1 | Chlamydia trachomatis IgG Ab (CSF, immunofluorescence) | MICRO |
| 16596-9 | Chlamydia trachomatis IgM Ab (CSF, immunofluorescence) | MICRO |
| 16597-7 | Chlamydia trachomatis B IgG Ab | MICRO |
| 16598-5 | Chlamydia trachomatis C IgG Ab | MICRO |
| 16599-3 | Chlamydia trachomatis DNA (Blood, qualitative, naa with probe detection) | MICRO |
| 166-9 | Cephapirin (disk diffusion (kb)) | ABXBACT |
| 1660-0 | 11-Hydroxyetiocholanolone | CHEM |
| 16600-9 | Chlamydia trachomatis rRNA in Genital specimen (qualitative, probe) | MICRO |
| 16601-7 | Chlamydia trachomatis rRNA (Urine, qualitative, probe) | MICRO |
| 16602-5 | Chlamydia trachomatis rRNA (Urine, qualitative, dna probe) | MICRO |
| 16603-3 | Chloramphenicol --peak | DRUG/TOX |
| 16604-1 | Chloramphenicol --trough | DRUG/TOX |
| 16605-8 | Chlorocycline (Urine) | DRUG/TOX |
| 16606-6 | Chlorine in Dialysis fluid | DRUG/TOX |
| 16607-4 | Chlorine in Water | DRUG/TOX |
| 16608-2 | Chlorpheniramine (Urine) | DRUG/TOX |
| 16609-0 | Chlorphentermine (Blood) | DRUG/TOX |
| 1661-8 | 11-Ketoandrosterone | CHEM |
| 16610-8 | Chlorphentermine (Urine) | DRUG/TOX |
| 16611-6 | Chlorpyrifos (Urine) | DRUG/TOX |
| 16612-4 | Chlorthalidone | DRUG/TOX |
| 16613-2 | Cholesterol crystals in Stone (qualitative, infrared spectroscopy) | CHEM |
| 16614-0 | Cholesterol crystals (Body Fluid, qualitative, light microscopy) | HEM/BC |
| 16615-7 | Cholesterol.total/Cholesterol in LDL | CHEM |
| 16616-5 | Cholesterol in HDL/Cholesterol in LDL | CHEM |
| 16617-3 | Choriogonadotropin.intact (Semen) | CHEM |
| 16618-1 | Cladosporium herbarum Ab | ALLERGY |
| 16619-9 | Clarithromycin | DRUG/TOX |
| 1662-6 | 11-Ketoetiocholanolone | CHEM |
| 16620-7 | Clarithromycin+Ethambutol (minimum inhibitory concentration (mic)) | ABXBACT |
| 16621-5 | Clindamycin --peak | DRUG/TOX |
| 16622-3 | Clindamycin --trough | DRUG/TOX |
| 16623-1 | Clofazimine (minimum inhibitory concentration (mic)) | ABXBACT |
| 16624-9 | clomiPRAMINE in Milk | DRUG/TOX |
| 16625-6 | clomiPRAMINE in Milk | DRUG/TOX |
| 16626-4 | Clostridium tetani Ab --1st specimen | MICRO |
| 16627-2 | Clostridium tetani Ab --2nd specimen | MICRO |
| 16628-0 | Cloxacillin | DRUG/TOX |
| 16629-8 | Activated partial thrombplastin time (aPTT) from control (Blood, coagulation assay) | COAG |
| 1663-4 | 11-Oxycorticosterone | CHEM |
| 16630-6 | aPTT saline 1:1 from Control (Blood, coagulation assay) | COAG |
| 16631-4 | aPTT saline 1:1 (Blood, coagulation assay) | COAG |
| 16632-2 | Cocaethylene (Urine, confirmatory method) | DRUG/TOX |
| 16633-0 | Cocaine (Blood, qualitative) | DRUG/TOX |