C

CA-125 (Cancer Antigen) Test Calcium (Ca) in Blood Calcium (Ca) in Urine Cancer Antigen 125 (CA-125) Carbohydrate Antigen (CA-125) Test Carbon Dioxide Carbon Monoxide (CO) Carboxyhemoglobin Carcinoembryonic Antigen (CEA) Cardiac Blood Pool Scan Cardiac Catheterization Cardiac Enzyme Studies Cardiac Event Monitoring Cardiac Perfusion Scan Cardiolite Stress Test Carotid Angiogram Carotid CT Angiogram CAT Scan, Body CAT Scan, Head and Face CAT Scan, Spine Catecholamines in Blood Catecholamines in Urine CBC (Complete Blood Count) CD4+ Count CEA (Carcinoembryonic Antigen) Test Celiac Disease Antibodies Cell-Free Fetal DNA Test Cerebral Angiogram Cerebral CT Angiogram Cervical Biopsy and Colposcopy Cervical Exam Cervical Smear Chemistry Screen Chest X-Ray Chlamydia Tests Chloride (Cl) Cholesterol and Triglycerides Tests Chorionic Villus Sampling (CVS) Chromosome Analysis Clinical Breast Examination Clostridium Difficile Toxins Cobalamin Test Cold Agglutinins Colonoscopy Color Vision Tests Colposcopy and Cervical Biopsy Complete Blood Count (CBC) Computed Tomography (CT) Scan of the Body Computed Tomography (CT) Scan of the Head and Face Computed Tomography (CT) Scan of the Spine Computed Tomography Angiogram (CT Angiogram) Computed Tomography Intravenous Pyelogram (CT/IVP Connecting Peptide Assay (C-Peptide) Contraction Stress Test Coombs Antibody Test (Indirect and Direct) Coombs' Test Coronary Angiography Coronary Artery Calcium Scoring Coronary Artery CT Angiogram Coronary Calcium Scan Cortisol in Blood Cortisol in Urine Cortisol Suppression Test C-Peptide Cranial Ultrasound C-Reactive Protein (CRP) Creatine Kinase Creatinine and Creatinine Clearance CRP (C-reactive Protein) CT (Computed Tomography), Body CT (Computed Tomography), Head and Face CT (Computed Tomography), Spine CT Myelogram Culture, Stool CVS (Chorionic Villus Sampling) Cyanocobalamin Test Cystic Fibrosis Sweat Test Cystometrography Cystometry Cystoscopy Cystourethrogram