Browse Medical Abbreviations

C carbon [element]; cytosine; contact; Calorie (kilocalorie) [case sensitive]; Celsius (centigrade)
c calorie (small calorie); with
C&A conscious and alert
C&C confirmed and compatible
C&DB cough and deep breath
C&P crowning and pushing
C&S culture and sensitivity
C-B chest-back
C-collar cervical collar
C-spine cervical spine
c.c. with food (L. cum cibos)
c.m.s. to be taken tomorrow morning (cras mane sumendus)
c.n. tomorrow night (cras nocte)
c.n.s. to be taken tomorrow night (cras nocte sumendus)
c/o complains of
C/S consult
C/TG cholesterol/triglyceride ratio
C/w continue with; consistent with
C1 first cervical vertebra
C2 second cervical vertebra
Ca calcium [element]
CA chronological age; cortical area; coronary artery; cancer, carcinoma
ca. approximately (circa)
CAB compressions-airway-breathing; coronary artery bypass
CABG coronary artery bypass graft
CABS coronary artery bypass surgery
CAC Certified Addictions Counselor; coronary artery calcium
CaCO3 calcium carbonate
CACT carnitine acylcarnitine translocase (deficiency)
CAD coronary artery disease; computer-aided detection
CAE complement activity enzyme
CAF cytoxan, adriamycin, fluorouracil
CAGE controlling, anger/annoyance, guilt, eye opener (questions)
CAH congenital adrenal hyperplasia; chronic active hepatitis
CAI computer assisted instruction
CAIS complete androgen insensitivity syndrome
Cal Calorie (kilocalorie)
cal calorie
CAM complementary and alternative medicine
cAMP cyclic adenosine monophosphate
cANCA cytoplasmic ANCA
CAO conscious, alert, and oriented
CAOX3 conscious, alert, oriented to person, place, time
cap capsule; capillary
CAP community acquired pneumonia
CAPD central auditory processing disorder; continuous ambulatory peritoneal dialysis
caps capsules
CARP confluent and reticulated papillomatosis
CARS compensatory anti-inflammatory response syndrome
cART combination antiretroviral therapy
CAST cardiac arrhythmia suppression trial
CAT computerized axial tomography; crisis assessment and treatment
cath cathartic; catheter(ization)
CAU child and adolescent unit; clinical assessment unit
cauc Caucasian
CAUTI catheter-associated urinary tract infection
cav cavity
CAVH continuous arteriovenous hemofiltration
CAVP continuous arterial venous pressure
CB carotid bruit
CBC complete blood count
CBD common bile duct; cannabidiol
CBE charting by exception; clinical breast exam
CBF coronary blood flow; core-binding factor; cerebral blood flow
CBG corticosteroidbinding globulin; capillary blood gas
CBI continuous bladder irrigation
CBLL capillary blood lead level
CBO community based organization
CBP chronic bacterial prostatitis
CBRNE chemical, biological, radiological, nuclear, and explosive agents
CBS casual blood sugar
CBSC cord blood stem cells
CBT computer-based training; cognitive behavioral therapy
CBW chemical and biological warfare
cc milliliter (cubic centimeter)
CC current complaint; care coordinator; cardiac catheterization; chief complaint
CCA calcium channel antagonist; common carotid artery
CCAM congenital cystic adenomatoid malformation
CCB calcium channel blocker; change control board
CCC checkpoint clamp complex; chronic care clinic
CCCA central centrifugal cicatricial alopecia
CCE clubbing, cyanosis edema
CCF congestive cardiac failure
CCH care closer to home
CCHS congenital central hypoventilation syndrome
CCK cholecystokinin
CCMS cerebrocostomandibular syndrome; clean catch midstream (specimen)
CCNU lomustine
CCP cyclic citrullinated peptide; clinical care pathway
CCPD continuous cycling peritoneal dialysis
CCRA cardiac cath recovery area
CCT controlled cord traction; certificate of completion of training
CCU critical care unit; cardiac care unit; coronary care unit
CCW counterclockwise
CD controlled drug(s); Crohn's disease; current diagnosis; cycle day; conduct disorder; cluster of differentiation; cesarean delivery; cardiovascular disease; communicable disease; chemical dependency
Cd cadmium [element]
CD-ROM compact disc read-only memory
CD4 helper T lymphocytes
CD8 cytotoxic T lymphocytes
CDA Certified Dental Assistant
CDAD Clostridium difficile-associated disease
CDC Centers for Disease Control and Prevention
CDG congenital disorders of glycosylation
CDH congenital dislocation hip; congenital diaphragmatic hernia
CDHF chronic diastolic heart failure
CdLS Cornelia de Lange syndrome
CDMI Clinical Digital Maturity Index
cDNA complementary DNA
CDT Certified Dental Technician; Clostridium difficile toxin
CDU chemical dependency unit
CE continuing education
Ce cerium [element]
CEA cost-effectiveness analysis; cultured epithelial autografts; carcinoembryonic disease; carotid endarterectomy; carcinoembryonic antigen
cEEG continuous electroencephalogram
CEH continuing education hour
CEMRI contrast-enhanced magnetic resonance imaging
CEN Certified Emergency Nurse
cert certified, certificate
cerv cervix/cervical
CES cat-eye syndrome
CETR care, education and treatment review
CEU continuing education unit
CF cystic fibrosis
cf. compare (L. confer)
CFAM cerebral function analysing monitor
CFC chlorofluorocarbon
cfDNA cell free DNA
CFLD cystic fibrosis liver disease
CFR case fatality ratio; Certified First Responder; child fatality review; Code of Federal Regulations
CFS chronic fatigue syndrome
CFTR cystic fibrosis transmembrane regulator
CFU colony-forming unit
cg centigram (one hundredth of a gram)
CG chorionic gonadotropin
CGA comprehensive geriatric assessment; contact guard assist
CGD chronic granulomatous disease
CGH comparative genomic hybridization
Cgm centigram (one hundredth of a gram)
cGMP cyclic guanine monophosphate
CGN chronic glomerulonephritis
CGRP calcitonin gene-related peptide
cGy centigray
CH clinical hold; congenital hypothyroidism; corpuscular hemoglobin
ch child; chest
ch px chicken pox
CHADS congestive heart failure, hypertension, age, diabetes mellitus, prior stroke or TIA
CHAQ Childhood Health Assessment Questionnaire
CHB complete heart block; congenital heart block
CHC community health center; continuing health care
CHD congenital heart disease; coronary heart disease
ChE cholinesterase
chem chemical, chemistry
chemo chemotherapy
CHF congestive heart failure; chronic heart failure
CHHA certified home health aide/agency
CHI closed head injury
CHL conductive hearing loss
CHO carbohydrate
chol cholesterol
CHR complete hematologic response
Chr chronic
CHS Chediak-Higashi syndrome
ChSu chondroitin sulfate
CHT closed head trauma
CI cardiac index; confidence interval; cochlear implant
Ci curie
CIA collagen-induced arthritis
CIBH change in bowel habits
CIC crisis intervention center; circulating immune complex; certified infection control
CICU coronary intensive care unit
CIE counterimmunoelectrophoresis
CIED cardiovascular implantable electronic device
cig cigarette
CIM critical illness myopathy
CIMT carotid intima-media thickness
CIN contrast-induced nephropathy; cervical intraepithelial neoplasia
CIP clean in place; cost/continuous improvement plan/process
CIPA congenital insensitivity to pain with anhidrosis
circ circumcision; circumference; circulate
CIS carcinoma in situ
CISM critical incident stress management
CJD creutzfeldt-jakob disease
CK creatinine phosphokinase; creatine kinase
CK-MB serum creatine kinase, myocardial-bound
CKC closed kinetic chain; cold knife conization
CKD chronic kidney disease
cl centiliter
Cl chlorine [element]
Cl- Chloride
CLA certified laboratory assistant
CLABSI central line-associated bloodstream infection
CLcr creatinine clearance
CLD chronic liver disease
CLI critical limb ischemia
CLIA clinical laboratory improvement amendments
clin clinic
CLL chronic lymphocytic leukemia
CLN clinical lead/liaison nurse
CLOD clinical lead for organ donation
CLR clear
CLS Coffin Lowry syndrome
CLTC citizens for long-term care
CM cervical mucus; case/care management
cm centimeter
cm2 square centimeter
CMA Certified Medical Assistant
CMAP compound muscle action potential
CMAS Childhood Myositis Assessment Scale
CMC carpo metacarpal
CMC joint carpometacarpal joint
CME continuing medical education
CMF cyclophosphamide, methotrexate, and fluorouracil
CMG cystometrogram
CMG2 capillary morphogenesis protein 2
CMHC community mental health center
CMI cell-mediated immunity
CML chronic myelogenous leukemia; chronic myeloid leukemia
CMO comfort measures only; chief medical officer; care management organization
CMP comprehensive metabolic panel
cmp cardiomyopathy
CMR cardiac magnetic resonance (imaging); cerebral metabolic rate
CMS Centers for Medicare and Medicaid
CMT certified medication technician; cervical motion tenderness
CMTC cutis marmorata telangiectatica congenita
CMV controlled mechanical ventilator; cytomegalovirus
CN cognitively normal; cranial nerve; child nutrition
CNA Certified Nurse Aide
CNE chronic nervous exhaustion
CNH chondrodermatitis nodularis helices
CNI calcineurin inhibitor
CNM Certified Nurse Midwife
CNO Chief Nursing Officer
cNOS constitutive nitric oxide synthase
CNR closed nasal reduction
CNS Clinical Nurse Specialist; central nervous system
CNS lupus central nervous system lupus
CNSC certified nutrition support clinician
CO Certified Orthotist; carbon monoxide; cardiac output
Co cobalt [element]
CO2 carbon dioxide
COA coarctation of the aorta; Certified Ophthalmic Assistant
CoA Coenzyme A
COAD chronic obstructive airway disease
coag coagulation
COB coordination of benefits; close of business
COC cauterization of the cervix; combined oral contraceptive; Certificate of Coverage
COCs combined oral contraceptives (estrogen and progestin)
COG center of gravity
COH carbohydrate; controlled ovarian hyperstimulation
COLD chronic obstructive lung disease
COM chronic otitis media
COMP cartilage oligomeric matrix protein
comp. compound; compounded of; complication
COMT catechol-o-methyltransferase
conc concentrated
cond condition
cong congenital
CONSORT Consolidated Standards of Reporting Trials
const constant
cont continue
contras contraindications
contrx contractions
COO chief operating officer
COP conditions of participation (Medicare)
COPD chronic obstructive pulmonary disease
COPE chronic obstructive pulmonary emphysema
CORE coordinated outbreak response and evaluation
corr correct, correction
COT Nicotine/Cotinine (COT test)
COTA certified occupational therapy assistant
CoV coronavirus
COWS clinical opiate withdrawal scale
COX cyclooxygenase
COX-2 cyclooxygenase 2 (inhibitors)
cP centipoise unit
CP chest pain; cerebral palsy; cardiopulmonary; cleft palate; cicatricial pemphigoid
CPA cerebellopontine angle; costophrenic angle
CPAP continuous positive airway pressure
CPB competitive protein binding; cardiopulmonary bypass
CPC clinicopathologic conference
CPD continuing professional development; congenital polycystic disease; cephalopelvic disproportion; chronic pulmonary disease
CPDD calcium pyrophosphate deposition disease
CPE chronic pulmonary emphysema; cytopathogenic effect
CPEO chronic progressive external ophthalmoplegia
CPET cardiopulmonary exercise testing
CPHD combined pituitary hormone deficiency
CPHSS Cincinnati Prehospital Stroke Scale
CPhT Certified Pharmacy Technician
CPIS Clinical Pulmonary Infection Score
CPK creatine phosphokinase; creatinine phosphokinase
CPM counts per minute; central pontine myelinolysis; continuous passive mobilizer; continuous passive motion; care plan meeting
CPMI chronic and persistent mental illness
CPP cerebral perfusion pressure; choroid plexus papilloma
CPPD calcium pyrophosphate dihydrate
CPPV continuous positive pressure ventilation
CPR cardiopulmonary resuscitation
CPS Child Protective Services
CPT carnitine palmitoyl transferase; Current Procedural Terminology; chest physiotherapy
CQI continuous quality improvement; clinical quality indicator
CR crown-rump length; complete remission; creatinine; conditioned reflex; controlled release (medication)
Cr chromium [element]
CRA clinical research associate
CRB clinical reference board; change review board
CRC colorectal cancer; Certified Rehabilitation Counselor
CrCl creatinine clearance
CRD chronic respiratory disease
crea creatinine
creat creatinine
CREST calcinosis, Raynaud's phenomenon, esophageal dysmotility, sclerodactyly, telangiectasias
CRF chronic renal failure; cardiac risk factors; case report form; corticotropin-releasing factor
CRH corticotropin-releasing hormone
CRI constant rate infusion; catheter-related infection; chronic renal insufficiency
CRIF closed reduction-internal fixation
CRISPR clustered regularly interspaced short palindromic repeats
crit Hematocrit
CRL crown rump length
cRNA complementary RNA; chromosomal RNA
CRNA certified registered nurse anesthetist
CRNH certified registered nurse hospice
CRNP Certified Registered Nurse Practitioner
CRO clinical research organization
CRP C-reactive protein
CRPS complex regional pain syndrome
CRQ Chronic Respiratory Questionnaire
CRR consult review request
CRRT continuous renal replacement therapy
CRS cytokine release syndrome; congenital rubella syndrome; chronic rhinosinusitis
CRS-R Conners Rating Scales-Revised
Crt creatinine
CRT capillary refill time; Certified Respiratory Therapist; cardiac resynchronization therapy; chemoradiation therapy
CRTT Certified Respiratory Therapy Technician
CRU coronary rehabilitation unit
cryo cryoprecipitate; cryosurgery
Cs cesium [element]
CS culture and sensitivity; completed stroke; clinically significant; chondroitin sulfate; cesarean section; cardiogenic shock; cardiac sphincter; close supervision
cs conditioned stimulus
CSA cyclosporin A; central sleep apnea; Controlled Substances Act; cross sectional area
CSF colony-stimulating factor; cerebrospinal fluid
CSH combat support hospital
CSHF chronic systolic heart failure
CSIC cervical spine immobilization collar
CSII continuous subcutaneous insulin infusion
CSM circulation, sensory, and motor; cervical spondylotic myelopathy
CSO chief scientific officer
CSP carotid sinus pressure
CSR Cheyne-Stokes respiration; central supply room
CSS central service supply; Churg Strauss syndrome
CST contraction stress test; Certified Surgical Technologist
CSU catheter specimen of urine
CT computed tomography; computed/computerized tomography; cognitive therapy; clinical trial; chest tube
CT scan computed tomography scan
CT/GC Chlamydia Trachomatis/Neisseria Gonorrhea
CTA clear to auscultation; computerized tomography angiography
CTAB clear to auscultation bilaterally
CTB chronic tuberculosis; cease to breathe
CTC chlortetracycline; common toxicity criteria; circulating tumor cell; computed tomographic colonography
CTCL cutaneous T-cell lymphoma
CTD cumulative trauma disorder; connective tissue disease
ctDNA circulating tumor DNA
CTE chronic traumatic encephalopathy
CTEPH chronic thromboembolic pulmonary hypertension
CTG cathepsin G
CTLSO cervical thoracic lumbar sacral orthosis
cTnI cardiac troponin I
cTnT cardiac troponin T
CTO chronic total occlusion; clinical trial outline
CTP color, temperature, pulse; cytidine triphosphate
CTPA computed tomography pulmonary angiogram
CTPH chronic thromboembolic pulmonary hypertension
ctr control
CTR carpal tunnel release
CTS carpal tunnel syndrome
ctx contraction
CTZ chemoreceptor trigger zone
Cu copper [element]
CU case unknown
CUA cost-utility analysis
CUC chronic ulcerative colitis
CUD carnitine uptake defect; cannabis use disorder
CUm cubic micron
cur current
CV curriculum vitae; cardiovascular
CVA cerebrovascular accident; cardiovascular accident; cerebral vascular accident; costovertebral angle
CVAT costovertebral angle tenderness
CVB coxsackievirus B
CVC central venous catheter
CVD cerebrovascular disease; cardiovascular disease
CVI chronic venous insufficiency; central visual impairment
CVID common variable immunodeficiency
CVL central venous line
CVOU cardiovascular outpatient unit
CVP central venous pressure
CVRB critical value read back
CVS cyclical vomiting syndrome; computer vision syndrome; clean-voided specimen; chronic villus sampling; chorionic villus sampling
CvS cardiovascular system
CVVH continuous venovenous hemofiltration
CVVHD continuous venovenous hemodialysis
CVVHDF continuous venovenous hemodiafiltration
CVVHF continuous venovenous hemofiltration
CVX cervix
CWD canal wall down
CWR canal wall reconstruction
CWU canal wall up
Cx culture; conscious; cervix/cervical; cancel
CX circumflex
Cx Bx cervical biopsy
CXR chest x-ray
Cy cyanosis
CY calendar year
CYC cyclophosphamide
CYS children and youth services
cysto cystoscopy
cytol cytology