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Dictionary of Medical Acronyms & Abbreviations

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  • RSIL  respiratory and systemic infection laboratory
  • R-SIRS  Revised Seriousness of Illness Rating Scale
  • RSIVP  rapid-sequence intravenous pyelography
  • RSK  ribosomal S6 kinase
  • RSL  right sacrolateral [fetal position]
  • RSLD  repair of sublethal damage
  • RSLT  test result [UMLS]
  • RSM  risk screening model; Royal Society of Medicine
  • RSMR  relative standard mortality rate
  • RSN  restin; right substantia nigra
  • RSNA  Radiological Society of North America; renal sympathetic nerve activity
  • RSO  radiation safety officer; Resident Surgical Officer; right superior oblique [muscle]
  • rSO2  regional oxygen saturation
  • RSP  rapid straight pacing; rat serum protein; recurrent spontaneous pneumothorax; removable silicone plug; respirable suspended particulate; ribose-5-phosphatase; right sacroposterior [fetal position]
  • RSPAC  remote sensing public access center
  • RSPCA  Royal Society for the Prevention of Cruelty to Animals
  • RS-PCR  ribonucleic acid [RNA] specific template polymerase chain reaction
  • RS3PE  remitting seronegative symmetrical synovitis with pitting edema
  • RSPH  Royal Society for the Promotion of Health
  • RSPK  recurrent spontaneous psychokinesis
  • RSPV  right superior pulmonary vein
  • RSR  rectosphincteric reflex response-stimulus ratio; regular sinus rhythm; relative survival rate; right superior rectus [muscle]
  • rSr  an electrocardiographic complex
  • RSS  rat stomach strip; recombination signal sequence; rectosigmoidoscopy; repetitive stress syndrome; rotary subluxation of the sphenoid; Russell-Silver syndrome; Russian spring-summer [encephalitis]
  • RSSE  Russian spring-summer encephalitis
  • RSSI  received signal strength indication
  • RSSR  relative slow sinus rate
  • RST  radiosensitivity test; rapid surfactant test; reagin screen test; repeated significance test; right sacrotransverse [fetal position]; rubrospinal tract
  • Rst  in paper or thin layer chromatography, the distance that a spot of a substance has moved, relative to a reference standard spot
  • RSTD  rectal-skin temperature difference
  • R-step  restoration step
  • rSTERN  recurrent spatiotemporal neuron
  • RSTI  Radiological Service Training Institute
  • RSTL  relaxed skin tension lines
  • RSTMH  Royal Society of Tropical Medicine and Hygiene
  • RSTS  retropharyngeal soft tissue space; Rubinstein-Taybi syndrome
  • RSTV  Rost Island virus
  • RSU  radiological sciences unit
  • RSV  regurgitant stroke volume; respiratory syncytial virus; right subclavian vein; Rous sarcoma virus
  • RSVC  right superior vena cava
  • RSVP  rejuvenation with sparing of vascular perforators; retired senior volunteer program
  • RSV-Pr-C  Rous sarcoma virus (Prague C)
  • RSV-SR-D  Rous sarcoma virus (Schmidt-Ruppin D)
  • RSV-SR-B  Rous sarcoma virus (Schmidt-Ruppin B)
  • RT  rabbit trachea; radiologic technologist; radiotelemetry; radiotherapy; random transfusion; radium therapy; rapid tranquilization; rational therapy; reaction time; reading test; real time; reciprocating tachycardia; recovery time; recreational therapy; rectal temperature; red tetrazolium; red-top; reduction time; reference terminology; Registered Technician; related term [UMLS]; relaxation time; renal transplantation; repetition time; [heart] repolarization time; resistance transfer; respiratory therapist/therapy; response time; rest tremor; retransformation; retrieved term; reverse transcriptase; reverse transcription; right; right thigh; robust take; room temperature; Rubinstein-Taybi [syndrome]
  • RT3, rT3  reverse triiodothyronine
  • RT90  time to 90% relaxation
  • Rt  right; total resistance
  • rT  recurrent tumor [TNM (tumor-node-metastasis) classification]; ribothymidine
  • rt  right; room temperature
  • RTA  ray tracing algorithm; renal tubular acidosis; reverse transcriptase assay; road traffic accident
  • RTAD  renal tubular acidification defect
  • rTag  recombinant small T-antigen
  • rTAP  recombinant tick anticoagulant peptide
  • RT(ARRT)  Radiologic Technologist certified by the American Registry of Radiologic Technologists
  • RTAS  radiology telephone access system
  • RTC  rape treatment center; regional tuberculosis center; renal tubular cell; residential treatment center; return to clinic; reverse thrust catheter
  • rtc  return to clinic
  • RTCL  Radiotherapy Command Language
  • rTCMS  repetitive transcranial magnetic stimulation
  • RT-CT  radiotherapy dedicated computed tomography
  • RTD  real time 3-dimensional [ultrasound]; renal tubular dysplasia or dysgenesis defect; resonant tunneling device; routine test dilution
  • Rtd  retarded
  • RTE  Registry of Toxic Effects
  • RTEC  Regional Technology and Education Consortium
  • RTECS  Registry of Toxic Effects of Chemical Substances [NLM database]
  • RTF  resistance transfer factor; respiratory tract fluid; rich text format
  • RTG  radioactive thermal generator; renal threshold of glucose
  • RTG-2  rainbow trout gonadal tissue cells
  • RTH  resistance to thyroid hormone
  • RTI  reproductive tract infection; respiratory tract infection; retrograde tracheal intubation; reverse transcriptase inhibition
  • RTK  receptor-tyrosine kinase; rhabdoid tumor of the kidney
  • rtl  rectal
  • rt lat  right lateral
  • RTM  registered trademark
  • rTMS  repetitive transcranial magnetic stimulation
  • RTN  renal tubular necrosis
  • RTn  reverse transcription intermediate
  • RT(N)(ARRT)  Radiologic Technologist (Nuclear Medicine) certified by the American Registry of Radiologic Technologists
  • RTNet  radiotherapy networking system
  • rTNF  recombinant tumor necrosis factor
  • RTO  return to office; right toeoff
  • RTOG  radiation therapy oncology group
  • RTP  radiation treatment planning; radiotherapy treatment planning; renal transplantation patient; reverse transcriptase-producing [agent]
  • rTPA, rtPA, rt-PA  recombinant tissue plasminogen activator
  • RT-PACS  radiotherapy picture archival and communication system
  • RT-PCR  reverse transcriptase polymerase chain reaction [PCR]
  • RTPV  radiation therapy planning and verification; RT parvovirus
  • RTR  Recreational Therapist, Registered; red blood cell turnover rate; retention time ratio
  • RT(R)(ARRT)  Registered Technologist (Radiography) certified by the American Registry of Radiologic Technologists
  • RT-RH  reverse transcriptase-ribonuclease H
  • RTRR  return to recovery room
  • RTS  rapid throughput screening; real time scan; Rett syndrome; Revised Trauma Score; right toestrike; Rothmund-Thomson syndrome; Rubinstein-Taybi syndrome
  • RTSS  rest technetium-99m sestamibi scan
  • RTT  round trip time
  • RT(T)(ARRT)  Radiologic Technologist (Radiation Therapy) certified by the American Registry of Radiologic Technologists
  • RTTP  radiation therapy treatment planning
  • RTU  real-time ultrasonography; relative time unit; renal transplantation unit
  • RT3U  resin triiodothyronine uptake
  • RTUI  respiratory therapy utilization index
  • RTV  resistance-to-voltage [converter]; rhinotracheitis virus; room temperature vulcanization
  • RTW  return to work
  • RTX  robustotoxin
  • RU  radioulnar; rat unit; reading unit; residual urine; resin uptake; resistance unit; retrograde urogram; right upper; roentgen unit
  • ru  radiation unit
  • RU-1  human embryonic lung fibroblasts
  • RU-486  mifepristone
  • RUA  reduced under anesthesia
  • RUBV  rubella virus
  • RUC  rapid update cycle
  • RUD  recurrent ulcer of the duodenal bulb; repeating unit domain
  • RUE  right upper extremity
  • RUG  resource utilization group; retrograde urethrography
  • RUL  right upper eyelid; right upper lateral; right upper limb; right upper lobe
  • RuMP  ribulose monophosphate pathway
  • RUOQ  right upper outer quadrant
  • RUP  right upper pole
  • Ru1,5P  ribulose-1,5-biphosphate
  • Ru5P  ribulose-5-phosphate
  • rupt  ruptured
  • RUPV  right upper pulmonary vein
  • RUQ  right upper quadrant
  • RUR  resin-uptake ratio
  • RURTI  recurrent upper respiratory tract infection
  • RUS  radioulnar synostosis; real-time ultrasonography
  • RUSB  right upper sternal border
  • RUSP  right ventricular systolic pressure
  • RUT  rapid urease test
  • RUTH  Raloxifene Use for the Heart [study]
  • RUV  residual urine volume
  • RUX  right upper extremity
  • RUZ  right upper zone
  • RV  ranavirus; random variable; rat virus; Rauscher virus; rectovaginal; regurgitant [stroke] volume; reinforcement value; renal vein; reovirus; residual volume; respiratory volume; retroventral; retroversion; retrovesical; retrovirus; return visit; rhabdovirus; rheumatoid vasculitis; rhinovirus; right ventricle, right ventricular; rotavirus; rubella vaccine; rubella virus; Russell viper
  • R/V, R&V  record and verify
  • RV  radius of view
  • Rv  venous resistance
  • RVA  rabies vaccine activated; recombinant virus assay; re-entrant ventricular arrhythmia; right ventricle activation; right ventricular apex; right vertebral artery
  • RV-A  Rotavirus A
  • RVAD  right ventricular assist device
  • RVAW  right ventricle anterior wall
  • RVB  red venous blood
  • RV-B  Rotavirus B
  • RVBF  reversed vertebral blood flow
  • RVC  reason for visit classification; rectovaginal constriction
  • RV-C  Rotavirus C
  • RVD  regulatory [fluid] volume decrease; relative vertebral density; relative vessel diameter; relative volume decrease; right ventricular dimension; right ventricular dysplasia
  • RV-D  Rotavirus D
  • RVDC  right ventricular diastolic collapse
  • RVDO  right ventricular diastolic overload
  • RVDV  right ventricular diastolic volume
  • RVE  right ventricular enlargement
  • RV-E  Rotavirus E
  • RVECP  right ventricular endocardial potential
  • RVED  right ventricular end-diastolic [pressure]
  • RVEDD  right ventricular end-diastolic diameter
  • RVEDP  right ventricular end-diastolic pressure
  • RVEDV  right ventricular end-diastolic volume
  • RVEDVI  right ventricular end-diastolic volume index
  • RVEF  right ventricular ejection fraction; right ventricular end-flow
  • RVESV  right ventricular end-systolic volume
  • RVET  right ventricular ejection time
  • RVF  renal vascular failure; residual volume fraction; Rift Valley fever; right ventricular failure; right visual field
  • RV-F  Rotavirus F
  • RVFP  right ventricular filling pressure
  • RVFV  Rift Valley fever virus
  • RVG  right ventral gluteus [muscle]; right visceral ganglion; radionuclide ventriculography
  • RV-G  Rotavirus G
  • RVH  renal vascular hypertension, renovascular hypertension; right ventricular hypertrophy
  • RVHD  rheumatic valvular heart disease
  • RVHR  renovascular hypertensive rat
  • RVI  relative value index; right ventricle infarction
  • RVID  right ventricular internal dimension
  • RVIT  right ventricular inflow tract
  • RV-IVRT  right ventricular isovolumic relaxation time
  • RVL  right vastus lateralis
  • RVLG  right ventrolateral gluteal
  • RVLM  rostral ventrolateral medulla
  • RVM  right ventricular mass; right ventricular mean
  • RVMM  rostral ventromedial medulla
  • RVO  Regional Veterinary Officer; relaxed vaginal outlet; right ventricular outflow
  • RVOT  right ventricular outflow tract
  • RVP  red veterinary petrolatum; resting venous pressure; right ventricular pressure
  • RVPEP  right ventricular pre-ejection period
  • RVPFR  right ventricular peak filling rate
  • RVP/LVP  right ventricular pressure/left ventricular pressure [ratio]
  • RVPRA  renal vein plasma renin activity
  • RVR  reduced vascular response; renal vascular resistance; repetitive ventricular response; resistance to venous return
  • RVRA  renal vein renin activity, renal venous renin assay
  • RVRC  renal vein renin concentration
  • RVS  rectovaginal space; relative value scale/study; reported visual sensation; retrovaginal space
  • RVSO  right ventricular stroke output
  • RVSV  right ventricular stroke volume
  • RVSW  right ventricular stroke work
  • RVSWI  right ventricular stroke work index
  • RVT  renal vein thrombosis
  • RVTE  recurring venous thromboembolism
  • RV/TLC  residual volume/total lung capacity
  • RVU  relative value unit
  • RVV  right ventricular volume; rubella vaccine-like virus; Russell viper venom
  • rVV  recombinant vaccinia virus
  • RVVO  right ventricular volume overload
  • RVVT  Russell viper venom time
  • RVW  right ventricular wall
  • RVWT  right ventricle wall thickness
  • RW  radiological warfare; ragweed; respiratory work; Romano-Ward [syndrome]; round window
  • R-W  Rideal-Walker [coefficient]; Romano-Ward [syndrome]
  • R/W  return to work
  • RWAGE  ragweed antigen E
  • RWC  receiving water concentration; regional weaning center
  • RWIS  restraint and water immersion stress
  • RWJF  Robert Wood Johnson Foundation
  • RWM  regional wall motion
  • RWMA  regional wall motion abnormality
  • RWP  ragweed pollen; R-wave progression
  • RWS  radiology work station; ragweed sensitivity
  • RWT  random walk theory [fluorescent imaging]; relative wall thickness
  • RWV  rotating-wall vessel
  • RX  rapid exchange; reaction; residual tumor not assessed [TNM (tumor-node-metastasis) classification]
  • Rx  drug; medication; pharmacy; prescribe, prescription, prescription drug; take [Lat. recipe]; therapy; treatment
  • RXLI  recessive X-linked ichthyosis
  • RXN  reaction
  • RXR  retinoid X receptor
  • RXRA  retinoid X receptor alpha
  • RXRE  retinoic X response element
  • RXRG  retinoid X receptor gamma
  • RXT  right exotropia
  • R-Y  Roux-en-Y [anastomosis]
  • RYD  ryanodine
  • RYR, Ryr  ryanodine receptor
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