“C” Abbreviation / Acronyms
| Abbreviation | Full form |
| C | Calorie (kilocalorie), Celsius, centigrade, complement. |
| Ca | calcium |
| CA | Coronary Artery |
| ca. | About, Approximately, Cancer |
| CABG | Coronary Artery Bypass Graft |
| CaCO3 | Calcium Carbonate |
| CAD | Coronary Artery Disease |
| Cal | large calorie |
| CAH | Chronic Active Hepatitis |
| cap. | capsule |
| C&S | Culture and Sensitivity |
| cAMP | cyclic adenosine monophosphate |
| cath | catheter |
| CBC | Complete Blood Count |
| CBI | Continuous Bladder Irrigation |
| CBRNE | Chemical, Biological, Radiological, Nuclear, and Explosive agents |
| CBT | Cognitive Behavioral Therapy |
| CBD | Common Bile Duct |
| CC | Chief Complaint, cubic centimeter |
| CCU | Coronary Care Unit, Critical Care Unit |
| CD4 | T-helper cells |
| CD8 | cytotoxic cells |
| CDC | Centers for Disease Control and Prevention |
| CEA | Carcinoembryonic antigen |
| CF | cystic fibrosis; Christmas factor |
| CFTR | Cystic Fibrosis Trans-membrane Regulator |
| CHD | Congenital Heart Disease, Coronary Heart Disease |
| CHF | Congestive Heart Failure |
| CI | Cardiac Index |
| CIN | Cervical Intraepithelial Neoplasia |
| CIS | Carcinoma in Situ |
| Ci | Curie |
| CK | Creatine Kinase |
| CK-MB | Creatine Kinase-Myocardial Bound |
| Cl | Chlorine |
| CLL | Chronic Lymphocytic Leukaemia |
| c.m.s. | to be taken tomorrow morning |
| CMT | Certified Medication Technician |
| CMV | Cytomegalovirus |
| c.n. | tomorrow night |
| CNS | Central Nervous System |
| c.n.s. | to be taken tomorrow night |
| CO | Carbon Monoxide, Cardiac Output |
| CO2 | Carbon dioxide |
| Co | Cobalt |
| COLD | Chronic Obstructive Lung Disease |
| comp. | Compound, Compounded of |
| COPD | Chronic Obstructive Pulmonary Disease |
| CP | Cerebral Palsy, Cleft Palate |
| CPAP | Continuous Positive Airway Pressure |
| CPK | Creatine Phosphokinase |
| CPM | Continuous Passive Motion |
| CPR | Cardiopulmonary resuscitation |
| CPK-MB | Creatine Phospho-kinase Muscle Bandisoenzyme |
| CRP | C-Reactive Protein |
| CRS-R | Conners Rating Scales-Revised |
| CS | Cardiogenic Shock, Cesarean Section |
| CSF | Cerebrospinal Fluid, Colony-stimulating factor |
| CT | Computerized Tomography |
| Cu | copper, cubic |
| CV | Cardiovascular |
| CVA | Cerebrovascular Accident, Cardiovascular Accident, Costovertebral Angle |
| CP Angle | costophrenic angle |
| CVC | Central Venous Catheter |
| CVP | Central Venous Pressure |
| CVS | Chorionic Villi Sampling |
| CXR | Chest x-ray |
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