List of medical abbreviations: C

Sortable table
Abbreviation Meaning
(c with an overbar) with (from Latin cum) means with
Ccytosine
cervical vertebrae
C1atlas – first cervical vertebra of the spine
C2axis – second cervical vertebra of the spine
CAcarcinoma
cancer
Cacalcium
carcinoma
cancer
CAAcoronary artery aneurysm
c/bcomplicated by
CABGcoronary artery bypass graft (pronounced "cabbage")
CABPcoronary artery bypass procedure
CADcoronary artery disease
CADASILcerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy
CAGcoronary artery graft
coronary angiography
CAGEcut down, annoyed, guilty, eye opener (screening for alcoholism)
CAGScoronary artery graft surgery
cAMPcyclic adenosine monophosphate
CAHchronic active hepatitis
congenital adrenal hyperplasia
CAKUTcongenital abnormalities of the kidney and urinary tract
CALLAcommon acute lymphocytic leukemia antigen
CALMcafé au lait macules
CAMcell adhesion molecule
complementary and alternative medicine
CAMPcyclic adenosine monophosphate
CAPcommunity-acquired pneumonia
CAPDcontinuous ambulatory peritoneal dialysis
CAOconscious, alert, and oriented (no altered level of consciousness)
CaOxcalcium oxalate
Capscapsule
CAT / CTcomputed axial tomography / computed tomography
Cathcatheter
CAUTICatheter-associated urinary tract infection
CBAcost–benefit analysis (of treatment methods)
CBC/DIFFcomplete blood count/differential
CBDcommon bile duct
CBEclinical breast examination
CBFcerebral blood flow
CBIcontinuous bladder irrigation, as in Hematuria (Acute clot retention)
CBSchronic brain syndrome
CC
cc
cubic centimeter (use ml instead—see the list of abbreviations used in prescriptions)
chief complaint
cardiac catheter
carbon copy
CCAclear cell adenocarcinoma
CCBcalcium channel blocker
CCCUcritical coronary care unit
CCE
C/C/E
clubbing, cyanosis, and edema (general signs of cardiovascular disease)
CCGClinical commissioning group
CCFcongestive cardiac failure
CCKcholecystokinin
CCK-PZcholecystokinin-pancreozymin
CCNScell cycle–nonspecific [drug] (a type of drug used in chemotherapy)
CCOCclear cell odontogenic carcinoma
CCOTcalcifying cystic odontogenic tumor (formerly called calcifying odontogenic cyst)
CCPcyclic citrullinated peptide
CCRcardiocerebral resuscitation
CCUcoronary care unit
critical care unit
CDCeliac disease
Crohn's disease
chemical dependency
cluster of differentiation
controlled delivery
CDADClostridium difficile–associated diarrhoea
CDCCenters for Disease Control and Prevention
CDHcongenital dislocated hip
CDIcentral diabetes insipidus
Clostridium difficile infection
cool, dry, intact (when referring to incision/surgical sites) or clean, dry, intact when referring to bandages/dressings
CDMRcaesarean delivery on maternal request
CDPcytosine diphosphate
CDRcutaneous drug reaction
CEAcarcinoembryonic antigen
carotid endarterectomy
cost-effectiveness analysis
CEIOLcataract extraction with intraocular lens placement
CFcystic fibrosis
CFAcomplement-fixing antibody
colonization factor antigen
CFIDSchronic fatigue immune dysfunction syndrome
CFRcase fatality rate
CFSchronic fatigue syndrome
CFTcomplement fixation test
capillary filling time
CFTRcystic fibrosis transmembrane conductance regulator
CFUcolony-forming unit
CGDchronic granulomatous disease
CGIClinical Global Impression (including subscales such as CGI-BP, CGI-C, CGI-E, CGI-I, CGI-S)
cGMPcyclic guanosine monophosphate
CGNchronic glomerulonephritis
CHcongenital hypothyroidism
CHCcombined hormonal contraceptive
CHDchronic heart disease
congenital heart defect
coronary heart disease
ChEcholinesterase
CHEM-7a 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)
CHEcholinesterase
CHFcongestive heart failure
continuous hemofiltration
CHOcarbohydrate
CHOPcyclophosphamide, doxorubicin (a.k.a. hydroxydaunorubicin), vincristine(a.k.a. Oncovin), prednisone (chemotherapy regimen)
Cholcholesterol
CHScannulated hip screw
CHTcongenital hypothyroidism
CIconfidence interval
cardiac index
CIBcibus (food)
CICUcardiac intensive care unit
CIDPchronic inflammatory demyelinating polyneuropathy
CIMFchronic idiopathic myelofibrosis
CINcervical intraepithelial neoplasia, contrast-induced nephropathy
CINVChemotherapy-induced nausea and vomiting
Circcircumcision
circulation
CIScarcinoma in situ
CIVIcontinuous intravenous infusion
CIWAClinical Institute Withdrawal Assessment for Alcohol
CJDCreutzfeldt–Jakob disease
CKcreatine kinase (formerly CPK)
CKDchronic kidney disease
CKMBMB isoenzyme of creatine kinase
Clchlorine
clearance
CLAREcontact lens acute red eye
CLLchronic lymphocytic leukemia
CLNcervical lymph node
CLNDcervical lymph node dissection
complete lymph node dissection
CLPcleft lip and palate
CLScapillary leak syndrome
CMChirurgiae Magister, Master of Surgery (British and Commonwealth countries medical degree)
Caucasian male
cardiomyopathy
CMDcystic medial degeneration
CMEcontinuing medical education
CMLchronic myelogenous leukemia, also called chronic myeloid leukaemia
CMMLchronic myelomonocytic leukemia
CMOcomfort measures only (palliative care or hospice)
CMPcomplete metabolic profile (a blood panel)
cytosine monophosphate
CMSCenters for Medicare and Medicaid Services
chronic mountain sickness
CMTcervical motion tenderness
Charcot–Marie–Tooth disease
CMVcytomegalovirus
CNcranial nerves
CNScentral nervous system
Clinical nurse specialist
Crigler-Najjar syndrome
CNVMChoroidal Neovascular Membranes
C/O or c/ocomplains of...
COcardiac output
carbon monoxide
complains of...
COADchronic obstructive airways disease
COCPcombined oral contraceptive pill
COHcontrolled ovarian hyperstimulation
COLDchronic obstructive lung disease
Compcompound
Conjconjunctiva
CoNScoagulase-negative staphylcocci
COPcryptogenic organizing pneumonitis
COPDchronic obstructive pulmonary disease
CO2carbon dioxide
COVIDcoronavirus disease
COX-1cyclooxygenase 1
COX-2cyclooxygenase 2
COX-3cyclooxygenase 3
CPcerebral palsy
chest pain
constrictive pericarditis
CPAPcontinuous positive airway pressure
CPCclinicalpathological conference
CPCRcardiopulmonary-cerebral resuscitation, a version of CPR
CPDcephalopelvic disproportion
CPEClostridium perfringens enterotoxin
cardiogenic pulmonary edema
Carbapenemase producing Enterobacteriaceae
CPGclinical practice guideline
CPKcreatine phosphokinase
CPKMBcreatine phosphokinase heart
CPPcerebral perfusion pressure
CPPDcalcium pyrophosphate
cyclic perimenstrual pain and discomfort[1] (premenstrual syndrome)
CPRcardiopulmonary resuscitation
CPTCurrent Procedural Terminology
CRcomplete remission (complete response)
controlled release
Crcreatinine
CRCcolorectal cancer
CrClcreatinine clearance
(Note: Looks similar to, but does not mean, the chromium chlorides—CrCl2, CrCl3, CrCl4)
CRDchronic renal disease
circadian rhythm disorder
CREcarbapenem-resistant Enterobacteriaceae
Creatcreatinine
CRESTcalcinosis, Raynaud esophagus, sclerosis, teleangiectasiae
CRFchronic renal failure
corticotropin-releasing factor
CrGNcrescentic glomerulonephritis
CRHcorticotropin-releasing hormone
CRIchronic renal insufficiency
CrikeCricothyrotomy
CRISPRclustered regularly interspaced short palindromic repeats
Crithematocrit
CRLcrown-rump length
CRNAcertified registered nurse anesthetist
CROcontract research organization
CRPC-reactive protein
CRPCcastration-resistant prostate cancer
CRPScomplex regional pain syndrome
CRRTcontinuous renal replacement therapy
CRScongenital rubella syndrome
CRSDcircadian rhythm sleep disorder
CRTcardiac resynchronization therapy (artificial pacemaker)
chemoradiotherapy
conformal radiotherapy (irradiated zone conforms to boundaries)
cathode ray tube
capillary refill time
central retinal thickness

Certified Respiratory Therapist

CRTxchemoradiotherapy
CScaesarean section
compartment syndrome
culture sensitivity
Churg–Strauss syndrome
C/SCaesarean section
C&Sculture and sensitivity (antibiogram)
CsAcyclosporin A
CSAControlled Substances Act
C-sectioncesarean section
CSFcerebrospinal fluid
colony-stimulating factor
CSMEclinically significant macular edema
CSOMchronic suppurative otitis media
CSPCcommunity specialist palliative care
C-spinecervical spine
CSRcumulative survival rate
C-SSRSColumbia Suicide Severity Rating Scale
CSUcatheter specimen of urine
CSTcontraction stress test
CTcomputed tomography
cervicothoracic
CTAclear to auscultation
computed tomography angiography
CTABclear to auscultation bilaterally; also written CTA B
CTAPCT during arterial portography
CTCAECommon Terminology Criteria for Adverse Events
CT c/a/pCT scan of chest, abdomen, and pelvis
CTDconnective tissue disease
CTEchronic traumatic encephalopathy
coefficient of thermal expansion
CTEPHChronic thromboembolic pulmonary hypertension
CTOchronic total occlusion
Community Treatment Order (psychiatric term for forced drugging outside hospital context)
CTPcytosine triphosphate
cytidine triphosphate
Child-Turcotte-Pugh score
clear to percussion
CTPAcomputed tomographic pulmonary angiography
CTPECT scan for pulmonary embolii
CTRcarpal tunnel release
CTScomputed tomography scan
Carpal Tunnel Syndrome
CTUcancer treatment unit
CTxchemotherapy
CTXceftriaxone (a third-generation cephalosporin antibiotic)
contractions
chemotherapy
CTZChemoreceptor trigger zone
CUCchronic ulcerative colitis
CVcardiovascular
CVAcerebrovascular accident
costovertebral angle
CVADcentral venous access device
CVATcostovertebral angle tenderness
CVCcentral venous catheter
chronic venous congestion
CVDcardiovascular disease
CVIcerebrovascular incident
CVLcentral venous line
CVPcentral venous pressure
CVSchorionic villus sampling
cardiovascular system
Cerebrovascular stroke
CVIDcommon variable immunodeficiency
CVTcerebral venous thrombosis
CVVHcontinuous veno-venous hemofiltration, a short-term alternative to Hemodialysis
c/wconsistent with
CWPcoal worker's pneumoconiosis
Cxmicrobiological culture
Cxcomplication
Cxcervix
CXRchest x-ray (chest radiograph)

References

  1. Maternity and Women's Health Care, Loudermilk-Perry-Cashion-Allen, 2012, page 121
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