List of Medical Abbreviations: C

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Abbreviation Meaning
c (c with a bar over it) with (from Latin cum)
C cytosine
cervical vertebrae
C1 atlas – first cervical vertebra of the spine
C2 axis – second cervical vertebra of the spine
C-section cesarean section
CA carcinoma
Ca calcium
CABG coronary artery bypass graft surgery (pronounced "cabbage")
CABP coronary artery bypass procedure
CAD coronary artery disease
CADASIL cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy
CAG coronary artery graft
coronary angiography
CAGS coronary artery graft surgery
cAMP cyclic adenosine monophosphate
CAH chronic active hepatitis
congenital adrenal hyperplasia
CALLA common acute lymphocytic leukemia antigen
CAP community acquired pneumonia
CAPD continuous ambulatory peritoneal dialysis
CAO conscious alert and oriented
CaOx calcium oxalate
Caps capsule
CAT / CT computed axial tomography / computed tomography
Cath catheter
CBC complete blood count
CBC/DIFF complete blood count/differential
CBD common bile duct
CBE clinical breast exam
CBS chronic brain syndrome
cubic centimeter (use mL instead—see the do-not-use list)
chief complaint
cardiac catheter
carbon copy
CCCU critical coronary care unit
clubbing, cyanosis, and edema (general signs of cardiovascular disease)
CCF congestive cardiac failure
CCK cholecystokinin
CCK-PZ cholecystokinin-pancreozymin
CCNS Cell Cycle Non-Specific Drug. A type of medication used in chemotherapy.
CCP cyclic citrullinated peptide
CCR cardiocerebral resuscitation
CCU coronary care unit
critical care unit
CD Crohn's disease
CDH congenital dislocated hip
CDI central diabetes insipidus
CDI Clostridium difficile infection
CDMR cesarean delivery on maternal request
CDP cytosine diphosphate
CEA carcinoembryonic antigen
carotid endarterectomy
cost-effectiveness analysis
CEIOL Cataract extraction with intraocular lens placement
CF cystic fibrosis
CFA colonization factor antigen
CFIDS chronic fatigue immune dysfunction syndrome
CFR case fatality rate
CFS chronic fatigue syndrome
CFTR cystic fibrosis transmembrane conductance regulator
CFU colony forming unit
CGD chronic granulomatous disease
cGMP cyclic guanosine monophosphate
CGN chronic glomerulonephritis
CH congenital hypothyroidism
CHD chronic heart disease
congenital heart disease
coronary heart disease
ChE cholinesterase
CHEM-7 a group of blood tests, commonly called a basic metabolic panel (blood urea nitrogen, carbon dioxide, creatinine, glucose, serum chloride, serum potassium, serum sodium)
CHEM-20 a group of blood tests (albumin, alkaline phosphatase, alanine transaminase, aspartate aminotransferase, blood urea nitrogen, calcium – serum, serum chloride, carbon dioxide, creatinine, direct bilirubin, gamma-glutamyl transpeptidase, glucose test, lactate dehydrogenase, phosphorus – serum, potassium test, serum sodium, total bilirubin, total cholesterol, total protein, uric acid)
CHE cholinesterase
CHF congestive heart failure
CHO carbohydrate
CHOP cyclophosphamide, doxorubicin (a.k.a. hydroxydaunorubicin), vincristine(a.k.a. Oncovin), prednisone (chemotherapy regimen)
Chol cholesterol
CHS cannulated hip screw
CHT congenital hypothyroidism
CI confidence interval
cardiac index
CIB cibus (food)
CICU cardiac intensive care unit
CIDP chronic inflammatory demyelinating polyneuropathy
CIN cervical intraepithelial neoplasia
Circ circumcision
CIS carcinoma in situ
CJD Creutzfeldt-Jakob disease
CK creatine kinase
creatinine phosphokinase (formerly CPK)
CKD chronic kidney disease
CKMB MB isoenzyme of creatine kinase
CLARE contact lens acute red eye
CLL chronic lymphocytic leukemia
CM Chirurgiae Magister, Master of Surgery (British and Commonwealth countries medical degree)
CM Caucasian male
CMD cystic medial degeneration
CME continuing medical education
CML chronic myelogenous leukemia, also called chronic myeloid leukaemia
CMML chronic myelomonocytic leukemia
CMP complete metabolic profile
cytosine monophosphate
CMS chronic mountain sickness
CMT cervical motion tenderness
CMV cytomegalovirus
CN cranial nerves
CNS central nervous system
Crigler-Najjar syndrome
C/O complains of...
CO cardiac output
carbon monoxide
complains of...
COAD chronic obstructive airways disease
COCP combined oral contraceptive pill
COH controlled ovarian hyperstimulation
COLD chronic obstructive lung disease
Comp compound
Conj conjunctiva
COP cryptogenic organizing pneumonitis
COPD chronic obstructive pulmonary disease
CO2 carbon dioxide
COX-1 cyclooxygenase 1
COX-2 cyclooxygenase 2
COX-3 cyclooxygenase 3
CP cerebral palsy
chest pain
CPAP continuous positive airway pressure
CPC clinical pathological conference
CPD cephalopelvic disproportion
CPE Clostridium perfringens enterotoxin
CPK creatine phosphokinase
CPKMB creatine phosphokinase heart
CPP cerebral perfusion pressure
CPPD calcium pyrophosphate
CPR cardiopulmonary resuscitation
CPT Current Procedural Terminology
CR complete remission
Cr creatinine
CrCl creatinine clearance
(Note: Looks similar to, but does not mean, the chromium chlorides—CrCl2, CrCl3, CrCl4)
Creat creatinine
CREST calcinosis, Raynaud esophagus, sclerosis, teleangiectasiae
CRF chronic renal failure
corticotropin-releasing factor
CrGN crescentic glomerulonephritis
CRH corticotropin-releasing hormone
CRI chronic renal insufficiency
Crit hematocrit
CRL crown to rump length
CRP C-reactive protein
CRS congenital rubella syndrome
CRT cardiac resynchronization therapy (artificial pacemaker)
CS Caesarean section
culture sensitivity
Churg-Strauss syndrome
C/S Caesarean section
C&S culture and sensitivity (antibiogram)
C-spine cervical spine
CsA cyclosporin A
CSF cerebrospinal fluid
colony stimulating factor
CST contraction stress test
CT computed tomography
cervico thoracic
CTA clear to auscultation
computed tomography angiography
CTAP CT during arterial portography
CTO chronic total occlusion
CTP cytosine triphosphate
cytidine triphosphate
Child-Turcotte-Pugh score
CTPE CT scan for pulmonary embolii
CTS computed tomography scan
Carpal Tunnel Syndrome
CTU cancer treatment unit
CTX ceftriaxone (a third-generation cephalosporin antibiotic)
CUC chronic ulcerative colitis
CV cardiovascular
CVA cerebrovascular accident
costovertebral angle
CVAT costovertebral angle tenderness
CVC central venous catheter
chronic venous congestion
CVD cardiovascular disease
CVI cerebrovascular incident
CVP central venous pressure
CVS chorionic villus sampling
cardiovascular system
CVID common variable immunodeficiency
c/w consistent with
CWP coal worker's pneumoconiosis
Cx microbiological culture
Cx cervix
CXR chest x-ray
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