Dictionary of Medical Acronyms & Abbreviations

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[ R ]

R₁ | R₂ | R₃ | R₄ | R₅ | R₆ |

RBT resistive breathing training
RBTN rhombotin
RBTNL rhombotin-like
RBUV Rochambeau virus
RBV ribavirin; Rio Bravo virus; right brachial vein
RBW relative body weight
RBZ rubidazone
RC an electronic circuit containing a resistor and capacitor in series; radiocarpal; reaction center; recrystallization; red cell; red cell casts; red corpuscle; Red Cross; referred care; regenerated cellulose; rehabilitation counseling; Renshaw cell; residential care; resistance and compliance; resistive capacity; respiration ceases; respiratory care; respiratory center; respiratory compensation; rest cure; retention catheter; retrograde cystogram; rib cage; root canal; routine cholecystography
R&C resistance and capacitance
Rc conditioned response; receptor
RCA red cell agglutination; regulator of complement activity; relative chemotactic activity; renal cell carcinoma; replication-competent adenovirus; replication-competent alphavirus; retained cortical activity; right coronary angiography; right coronary artery; rotational coronary atherectomy
RCAMC Royal Canadian Army Medical Corps
rCBF regional cerebral blood flow
rCBV regional cerebral blood volume
RCC radiological control center; rape crisis center; ratio of cost to charges; receptor-chemoeffector complex; red cell cast; red cell concentrate; red cell count; regulator of chromosome condensation; renal cell carcinoma; reverse cumulative curve; right common carotid [artery]; right coronary cusp
RCCM Regional Committee for Community Medicine
RCCP renal cell carcinoma, papillary
RCCS remote clinical communications system
RCCT randomized controlled clinical trial
RCD relative cardiac dullness; robust change detection [algorithm in insulin therapy]
RCDA recurrent chronic dissecting aneurysm
RCDP rhizomelic chondrodysplasia punctata
RCDR relative corrected death rate
RCE reasonable compensation equivalent; Red Coding Engine [software]
RCF red cell ferritin; red cell folate; refractory ceramic fiber; relative centrifugal field/force; ristocetin cofactor
RCG radioelectrocardiography
RCGP Royal College of General Practitioners
RCH rectocolic hemorrhage
RCHF right congestive heart failure
RCHMS Regional Committee for Hospital Medical Services
RCI radiation conformity index; respiratory control index; retrospective cohort incidence
RCIA red cell immune adherence
RCIRF radiologic contrast-induced renal failure
RCIT red cell iron turnover
RCITR red cell iron turnover rate
RCL renal clearance; right coronary leaflet
RCM radial contour model; radiographic contrast medium; red cell mass; reinforced clostridial medium; remacemide; remote center of motion; replacement culture medium; retrospective cohort mortality; right costal margin; Royal College of Midwives
rCMR regional cerebral metabolism rate
rCMRGlc, rCMRglc regional cerebral metabolic rate for glucose
rCMRO₂ regional cerebral metabolic rate for oxygen
RCN right caudate nucleus; Royal College of Nursing
RCO right coronary ostium
RCoF ristocetin cofactor
RCOG Royal College of Obstetricians and Gynaecologists
RCoV respiratory coronavirus
RCP radiochemical purity; red cell protoporphyrin; retrocorneal pigmentation; riboflavin carrier protein; Royal College of Physicians
rCP regional cerebral perfusion
rcp reciprocal translocation
RCPath Royal College of Pathologists
RCPG respiratory center pattern generator
RCPH red cell peroxide hemolysis
RCPP recurrent coronary prevention program
rCPP regional cerebral perfusion pressure
RCPSC Royal College of Physicians and Surgeons of Canada
RCPSGlas Royal College of Physicians and Surgeons, Glasgow
RCR relative consumption rate; replication-competent recombinant; replication-competent retrovirus; respiratory control ratio
RCRA Resource Conservation and Recovery Act
rCRF recombinant corticotropin-releasing factor
RCS rabbit aorta-contracting substance; real-time control system; red cell suspension; reference coordinate system; renal collector system; reticulum cell sarcoma; revision control system; right coronary sinus; Royal College of Science; Royal College of Surgeons
RCSE Royal College of Surgeons, Edinburgh
RCSSS resource coordination system for surgical service
RCT radiotherapy and chemotherapy; randomized clinical trial; randomized controlled trial; registered care technologist; retrograde conduction time; root canal therapy; Rorschach content test; rotator cuff tear
rct a marker showing the ability of virulent strains to replicate at 40°C, while vaccine strain shows no replication
rCTB recombinant cholera toxin B
RCTE randomized clinical trial evaluator
RCU respiratory care unit
RCV rabbit calicivirus; recoverin; red cell volume
RCVS Royal College of Veterinary Surgeons
RCWI right cardiac work index
RD radial deviation; radiology department; rate difference; Raynaud disease; reaction of degeneration; registered dietitian; Reiter disease; related donor; relative dose; renal disease; resistance determinant; resistant disease; respiratory disease; resuscitation device; retinal degeneration; retinal detachment; Reye disease; rheumatoid disease; right deltoid; Riley-Day [syndrome]; Rolland-Desbuquois [syndrome]; rubber dam; ruminal drinking; ruptured disk
Rd rate of disappearance
rd rutherford
R&D research and development
RDA rapid epidemiological assessment; recommended daily allowance; recommended dietary allowance; Registered Dental Assistant; representation difference analysis; right dorsoanterior [fetal position]; right ductus arteriosus
RDB random double-blind [trial]; relational database
RDBMS regional database management system; relational database management system
RDBP RD [gene] binding protein
RDBS relational database server
RDB-X random double-blind crossover
RDC research data center; research diagnostic criteria
RDCRD Rare Disease Clinical Research Database
RDD relative depth dose [radiation]
RDDA recommended daily dietary allowance
RDDB Rare Disease Database
RDDP ribonucleic acid-dependent deoxynucleic acid polymerase
RDE receptor-destroying enzyme; remote data entry
RDEB recessively inherited dystrophic epidermolysis bullosa
RDE_D radiation dose required
RDES remote data entry system
RDF rapid dissolution formula
RDFC recurring digital fibroma of childhood
RDG retrograde duodenogastroscopy
RDH Registered Dental Hygienist
RDHBF regional distribution of hepatic blood flow
RDHI research and development health informatics
RDI recommended daily intake; respiratory disturbance index; rupture-delivery interval
RDIC resuscitation device, individual chemical
RDLBBB rate-dependent left bundle-branch block
RDM readmission
RDMS registered diagnostic medical sonographer
rDNA recombinant deoxyribonucleic acid [DNA]
RDOG radiology diagnostic oncology group
RDP right dorsoposterior [fetal position]
RDPA right descending pulmonary artery
RDQ respiratory disease questionnaire
RDR research data repository
RDRP, RdRp ribonucleic acid [RNA]-dependent ribonucleic acid polymerase
RDRS Rapid Disability Rating Scale
RDS Raskin Depression Scale; respiratory distress syndrome; reticuloendothelial depressing substance; rhodanese; slow retinal degeneration
RDT randomized discontinuation trial; retinal damage threshold; routine dialysis therapy
RDW red blood cell distribution width index
RDX radixin
RE radium emanation; random error; reading epilepsy; readmission; rectal examination; reference emitter; reflux esophagitis; regional enteritis; relative effectiveness; renal and electrolyte; resistive exercise; resting energy; restriction endonuclease; reticuloendothelial; retinol equivalent; right ear; right eye
R_E respiratory exchange ratio
R&E research and education
Re rhenium
R_e Reynold number
REA radiation emergency area; radioenzymatic assay; regulatory effectiveness analysis; renal anastomosis; restriction endonuclease analysis; right ear advantage
rea rearrangement
REAB refractory anemia with excess of blasts
REACH research on endothelin antagonism in chronic heart failure; resource utilization in congestive heart failure [studies]
REACT rapid early action in coronary treatment
REAC/TS Radiation Emergency Assistance Center/Training Site
readm readmission
READS restriction enzyme analysis of differentially expressed sequences
REAL Revised European-American Lymphoma [classification]
REALM rapid estimate of adult literacy in medicine
REAP restriction endonuclease analysis of plasmid
REAR renal, ear, anal, and radial [malformation syndrome]
REAS reasonably expected as safe; retained, excluded antrum syndrome
REAT radiological emergency assistance team
REB roentgen-equivalent biological
REC receptor; recombination, recombinant chromosome
rec fresh [Lat. recens]; recessive; recombinant chromosome; record; recovery; recurrence, recurrent
RECA recombination protein A
RECAP retrosynthetic combinatorial analysis procedure
recCHO recombinant Chinese hamster ovary
R_ECF extracellular fluid resistance
RECG radioelectrocardiography
recip recipient; reciprocal
RECIT Representation du Contenu Informationel de Testes Medicaux
recon the smallest unit of DNA capable of recombination
recond reconditioned, reconditioning
RECPAM recursive partition and amalgamation
recumb recumbent
RECREATE Rescue of Closed Arteries Treated by Stent for Threatened or Abrupt Closure [study]
recryst recrystallization
rect rectal; rectification, rectified; rectum; rectus [muscle]
Rec Ther recreational therapy
recur recurrence, recurrent
RED radiation experience data; rapid erythrocyte degeneration; repeat expansion detection
red reduction
REDAP rural emergency department approved for pediatrics
RED-LIP Reduction of Lipid Metabolism [study]
redox oxidation-reduction
REDP reduced energy diet program
REDS Retrovirus Epidemiology Donor Study
REDUCE Randomized Double-Blind Unfractionated Heparin and Placebo-Controlled Multicenter Trial; Restenosis Reduction by Cutting Balloon Evaluation [study]
REE rapid extinction effect; rare earth element; resting energy expenditure
REEDS retention of tears, ectrodactyly, ectodermal dysplasia, and strange hair, skin and teeth [syndrome]
REEG radioelectroencephalography
R-EEG resting electroencephalography
ReEND reproductive endocrinology
REEP right end-expiratory pressure
reev re-evaluate
reex re-examine
REF ejection fraction at rest; rat embryo fibroblast; referred; refused; renal erythropoietic factor; restriction endonuclease fingerprinting; right ventricular ejection fraction
ref reference; reflex
Ref-1 redox factor 1
Ref Doc referring doctor
REFI regional ejection fraction image
ref ind refractive index
refl reflex
REFLECT-1 Randomized Evaluation of Flosequinan on Exercise Tolerance-Initial Efficacy Trial
REFLECT-2 Randomized Evaluation of Flosequinan on Exercise Tolerance-Dose Response Study
REFLEX Randomized Evaluation of Flosequinan on Exercise Tolerance [study]; Restenosis Rates with Flexible GFX Stents [study]
Ref Phys referring physician
REFRAD released from active duty
REFSA Randomized European Femoral Stent vs Angioplasty Trial
RefSeq Reference Sequence [NLM database]
REG radiation exposure guide; radioencephalogram, radioencephalography
Reg registered
reg region; regular
regen regenerated, regenerating, regeneration
ReGIS respiration-gated irradiation system
REGRESS Regression Growth Evaluation Statin Study
reg rhy regular rhythm
REGU regulation [UMLS]
regurg regurgitation
REH renin essential hypertension
rehab rehabilitation, rehabilitated
REIN Ramipril Effect in Nephropathy [study]
REL rate of energy loss; recommended exposure limit; resource location; resting expiratory level
rel relative
RELACS Reikjavik experimental light-activated cell sorter
RELANCA relation between antineutrophil cytoplasm autoantibody [ANCA] levels and relapses of ANCA-associated glomerulonephritis and vasculitis
RELAY relayed correlation spectroscopy
RELE resistive exercise of lower extremities
RelTox Relational Toxicology [Project]
REM rapid eye movement; recent-event memory; reticular erythematous mucinosis; return electrode monitor; roentgen-equivalent-man