Abbreviation |
Interpretation |
| R | rectal |
| radial | |
| Right | |
| rate | |
| ratio | |
| Race | |
| regular | |
| racemic | |
| respiration | |
| resistant | |
| regional | |
| RA | rheumatoid arthritis |
| right arm | |
| right atrium | |
| radial artery | |
| readmission | |
| renal artery | |
| repeat action | |
| renal artery | |
| renin-angiotensin | |
| right auricle | |
| receptor antagonist | |
| RAB | recombinant antibody |
| RAC | racemic |
| renal artery clamping | |
| radial alveolar count | |
| RAD | radical |
| radial | |
| radiology | |
| right axis deviation | |
| radiotherapy | |
| rapid antigen detection | |
| reactive airway disease | |
| RAE | right atrial enlargement |
| retinol activity equivalents | |
| RAF | rapid atrial fibrillation |
| rheumatoid arthritis factor | |
| RAG | radial artery grafts |
| rapidly available glucose | |
| ragweed | |
| RAH | right atrial hypertrophy |
| radical abdominal hysterectomy | |
| RAI | radioactive iodine |
| radioactive isotope | |
| right atrial involvement | |
| RAM | rapid alternating movements |
| rectus abdominis muscle | |
| RAN | resident admission note |
| ranitidine | |
| RAO | right anterior oblique |
| renal artery occlusion | |
| recurrent airway obstruction | |
| RAP | right atrial pressure |
| recurrent abdominal pain | |
| rapid assessment procedures | |
| RAR | RA receptors |
| retinoic acid receptor | |
| renal artery reconstruction | |
| right arm, reclining | |
| RAS | recurrent aphthous stomatitis |
| reticular activating system | |
| renin-angiotensin system | |
| renal artery stenosis | |
| rapid atrial stimulation | |
| RAT | radiation therapy |
| right anterior thigh | |
| right atrial tachycardia | |
| recurrent acute tonsillitis | |
| RATX | radiation therapy |
| RAU | recurrent aphthous ulcers |
| radioactive uptake | |
| RB | right bundle |
| renal biopsy | |
| right breast | |
| rectal bleeding | |
| radiation burn | |
| reticulate body | |
| right buttock | |
| RBA | right basilar artery |
| relative binding affinity | |
| right brachial artery | |
| rescue breathing apparatus | |
| RBB | right bundle branch |
| right breast biopsy | |
| RBC | red blood cell |
| RBD | recurrent brief depression |
| right border of dullness | |
| rare bleeding disorders | |
| right brain-damage | |
| RBE | relative biologic effectiveness |
| RBF | renal blood flow |
| relative blood flow | |
| regional blood flow | |
| RBG | random blood glucose |
| RBILD | respiratory bronchiolitis-associated interstitial lung disease |
| RBL | radiographic bone level |
| rubber band ligation | |
| Rat Basophilic Leukemia | |
| RBP | retinol-binding protein |
| riboflavin binding protein | |
| recurrent bacterial pneumonia | |
| RBRVS | Recourse-Based Relative Value Scale |
| RBS | random blood sugar |
| receptor binding site | |
| RBT | rational behavior therapy |
| random breath testing | |
| resistive breathing training | |
| RBV | regional blood volume |
| relative bioavailability | |
| right brachial vein | |
| RC | respiratory care |
| root canal | |
| reaction center | |
| rapid cooling | |
| radicular cysts | |
| radiocarpal | |
| Red Cross | |
| RCA | right coronary artery |
| root cause analysis | |
| right carotid artery | |
| radiographic contrast agent | |
| RCBF | regional cerebral blood flow |
| RCC | renal cell carcinoma |
| rapid cooling contractures | |
| rape crisis center | |
| RCD | relative cardiac dullness |
| red cell deformability | |
| RCE | recurrent corneal erosion |
| right carotid endarterectomy | |
| relative coefficients of excretion | |
| RCF | root canal filling |
| red cell folate / ferritin | |
| RCH | right cerebral hemisphere |
| renal compensatory hypertrophy | |
| residential care home | |
| RCIN | radiographic-contrast-induced nephropathy |
| RCL | radial collateral ligament |
| renal clearance | |
| RCM | radiographic contrast media |
| right costal margin | |
| RCN | radiocontrast-induced nephropathy |
| right caudate nucleus | |
| RCO | right coronary ostium |
| RCP | respiratory care plan / practitioner |
| regional cerebral perfusion | |
| RCR | random coefficient regression |
| renal clearance rate | |
| respiratory control ratio /rate | |
| RCS | right coronary sinus |
| reliability coefficients | |
| repeat cesarean section | |
| reticulum cell sarcoma | |
| RCT | randomized clinical trial(s) |
| rotator cuff tear | |
| RCU | respiratory care unit |
| recurrent calcium urolithiasis | |
| RCV | red cell volume |
| RD | registered dietitian |
| right deltoid | |
| radial deviation | |
| reading disability | |
| renal disease | |
| respiratory disease | |
| rapid decompression | |
| respiratory distress | |
| raynaud's disease | |
| restricted duty | |
| ruptured disk | |
| RDA | recommended daily allowance |
| right ductus arteriosus | |
| RDB | randomized double-blind |
| RDCS | Registered Diagnostic Cardiac Sonographer |
| RDD | recommended daily dose |
| renal dose dopamine | |
| RDE | remote data entry |
| receptor-destroying enzyme | |
| respiratory disturbance events | |
| RDH | Registered Dental Hygienist |
| retinol dehydrogenase | |
| RDI | respiratory disturbance index |
| recommended daily intake | |
| RDM | right deltoid muscle |
| Readmission | |
| RDP | random donor platelets |
| rapid-onset dystonia parkinsonism | |
| RDS | Respiratory Distress Syndrome |
| Raskin Depression Scale | |
| rate-determining step | |
| RDT | rapid diagnostic test |
| randomized discontinuation trial | |
| rapidly disintegrating tablets | |
| regular dialysis treatment | |
| RDU | recreational drug use |
| RDVT | recurrent deep vein thrombosis |
| RDW | red cell distribution width |
| RE | relative error |
| concerning / regarding | |
| rectal examination | |
| relative efficiency | |
| reflux esophagitis | |
| right ear | |
| racemic epinephrine | |
| right eye | |
| REC | receptor |
| record | |
| recovery | |
| recombination | |
| recurrence | |
| recreation | |
| recurrent | |
| REE | resting energy expenditure |
| REF | referred |
| reflex | |
| Renal erythropoietic factor | |
| reference group | |
| REG | Region |
| regular / regularity | |
| radiation exposure guide | |
| regenerating | |
| REGURG | regurgitation |
| REL | relapse |
| relaxed | |
| resting expiratory level | |
| REM | rapid eye movement |
| REO | respiratory enteric orphan |
| REP | reperfusion |
| retrograde pyelogram | |
| repair | |
| recombinant erythropoietin | |
| repeat | |
| reepithelialization | |
| report | |
| replication | |
| RER | renal excretion rate |
| rough endoplasmic reticulum | |
| RES | reticuloendothelial system |
| resistance | |
| resident | |
| resection | |
| REST | resting |
| restoration | |
| RET | reticulocyte |
| retention | |
| Rational Emotive Therapy | |
| retina | |
| retained | |
| return | |
| RETIC | reticulocyte |
| RETRO | retrobulbar anesthesia |
| REV | revascularization |
| reverse | |
| reticuloendotheliosis virus | |
| RF | rheumatoid factor |
| reduction factor | |
| resistance factor | |
| renal failure | |
| radiofrequency | |
| respiratory failure | |
| restricted fluids | |
| rheumatic fever | |
| right foot | |
| rapid filling | |
| risk factor | |
| relative flow | |
| RFA | radiofrequency ablation |
| right femoral artery | |
| reason for assessment | |
| right forearm | |
| RFB | retained foreign body |
| residual functional capacity | |
| respiratory feedback | |
| RFC | rosette-forming cells |
| radiofrequency catheter | |
| reduced folate carrier | |
| RFD | reference dose |
| residue-free diet | |
| RFE | reason for encounter |
| return flow enema | |
| RFFF | radial forearm free flap(s) |
| RFL | reason for living |
| right front leg | |
| RFM | rectus femoris |
| rifampin | |
| RFP | recurrent facial paralysis |
| restrictive filling pattern | |
| Renal function panel | |
| rapid filling period | |
| RFS | renal fanconi syndrome |
| recurrence-free survival | |
| relapse-free survival | |
| RFT | return for treatment |
| rapid filling time | |
| respiratory function test(s) | |
| RFUT | radioactive fibrinogen uptake |
| RFV | reason for visit |
| right femoral vein | |
| RG | relative growth |
| rabies glycoprotein | |
| radical gastrectomy | |
| reactive gastritis | |
| right gluteus | |
| RGA | right gastric artery |
| RGEA | right gastroepiploic artery |
| RGM | right gluteus medius |
| rapidly growing mycobacterium | |
| RGO | reciprocating gait orthosis |
| RGP | rigid gas permeable |
| recombinant glycoprotein | |
| RH | reactive hyperemia |
| right hemisphere | |
| Rhesus factor | |
| radical hysterectomy | |
| recombinant human | |
| retinal hemorrhage | |
| right hand | |
| RHA | rheumatoid arthritis |
| right hepatic artery | |
| RHB | right heart bypass |
| recombinant hemoglobin | |
| RHC | right heart catheterization |
| respiration has ceased | |
| RHD | rheumatic heart disease |
| right hepatic duct | |
| right-hand dominant | |
| regular hemodialysis | |
| RHF | right heart failure |
| RHG | right-hand grip |
| RHIA | Registered Health Information Administrator |
| RHINO | rhinoplasty |
| RHL | recurrent herpes labialis |
| right hemisphere lesions | |
| right hepatic lobe | |
| RHR | resting heart rate |
| RHS | radius head subluxation |
| Ramsay Hunt syndrome | |
| relative hazards | |
| RHT | regional hyperthermia |
| regular hemodialysis treatment | |
| replacement hormone therapy | |
| RHV | right hepatic vein |
| RI | regular insulin |
| resistive / refractive index | |
| renal insufficiency | |
| respiratory illness | |
| radiation-induced | |
| RIA | radioimmunoassay |
| RIBA | recombinant immunoblot assay |
| RIC | radioimmunoconjugates |
| reduced intensity conditioning | |
| right iliac crest | |
| RID | remission-inducing drug |
| radial immunodiffusion | |
| ruptured intervertebral disk | |
| RIE | radiation induced emesis |
| RIF | rifampin |
| radiation-induced fibrosis | |
| right iliac fossa | |
| RIG | rabies immune globulin |
| RIH | right inguinal hernia |
| RIJ | right internal jugular |
| RIMA | right internal mammary artery |
| Reversible Inhibitors of MAO-A | |
| RIN | radiation-induced neoplasm |
| radiocontrast-induced nephropathy | |
| RIO | right inferior oblique |
| RIP | respiratory inductance plethysmography |
| raised intracranial pressure | |
| rapid infusion pump | |
| rhythmic inhibitory pattern | |
| RIR | right inferior rectus |
| RIS | radiation injury score |
| rapid infusion system | |
| reactive irritability scale | |
| resonance ionization spectroscopy | |
| RIT | radioimmunotherapy |
| rosette inhibition titer | |
| RIVD | ruptured intervertebral disk |
| RJ | right jugular |
| radial jerk | |
| RK | radial keratotomy |
| right kidney | |
| RL | right lateral |
| ringer's lactate | |
| right leg | |
| relative length | |
| right lower | |
| recurrent laryngeal | |
| right lung | |
| rotation left | |
| RLA | renin-like activity |
| right lower arm | |
| RLB | right lateral bending |
| rickettsia-like bacterium | |
| right lateral border | |
| RLC | residual lung capacity |
| RLD | ruptured lumbar disc |
| restrictive lung disease | |
| right lymph duct | |
| reference listed drug | |
| related living donor | |
| right lateral decubitus | |
| RLE | right lower extremity |
| RLF | right lateral flexion /femoral |
| RLG | radioluminography |
| right lateral gaze | |
| RLH | reactive lymphoid hyperplasia |
| Recombinant LH | |
| RLL | right liver lobe |
| right lower lid | |
| right lower leg | |
| RLN | recurrent laryngeal nerve |
| regional lymph node | |
| RLQ | right lower quadrant |
| RLR | right lateral rectus |
| Right lumbar region | |
| RLS | restless legs syndrome |
| Reaction Level Scale | |
| relative light scattering | |
| RLT | right lateral thigh |
| reduced-size liver transplantation | |
| RLWD | routine laboratory work done |
| RLX | raloxifene hcl |
| right lower extremity | |
| RM | radical mastectomy |
| respiratory movement | |
| RMA | Registered Medical Assistant |
| refuses medical advice | |
| RMB | right main bronchus |
| RMCA | right middle cerebral artery |
| RMD | recommended maintenance dose |
| rhythmic movement disorder | |
| RME | respiratory muscle endurance |
| routine medical examination | |
| resting metabolic expenditure | |
| rapid maxillary expansion | |
| RMF | right middle finger |
| radiated microcell fusion | |
| RML | radiation myeloid leukemia |
| right mediolateral | |
| right middle lobe | |
| RMO | responsible medical officer |
| Resident Medical Officer | |
| RMP | resting membrane potential |
| right mentoposterior | |
| risk management program | |
| Regional myocardial perfusion | |
| RMR | resting metabolic rate |
| right medical rectus | |
| RMS | red man syndrome (vanco infusion rxn) |
| repetitive motion syndrome | |
| respiratory muscle strength | |
| rheumatic mitral stenosis | |
| RMT | relative medullary thickness |
| Registered Medical Transcriptionist | |
| RMV | respiratory minute volume |
| RMW | respiratory muscle weakness |
| RN | Registered Nurse |
| retrobulbar neuritis | |
| radical nephrectomy | |
| radiation necrosis | |
| RNA | ribonucleic acid |
| radionuclide angiography | |
| Registered Nursing Assistant | |
| Registered Nurse Anesthetist | |
| RNC | Registered Nurse, Certified |
| RND | radical neck dissection |
| RNEF | Radionuclide ejection fraction |
| RNF | regional nodal failure |
| regular nursing floor | |
| RNI | Recommended Nutrient Intake |
| reactive nitrogen intermediates | |
| regional nodal irradiation | |
| RNP | Registered Nurse Practitioner |
| RNS | repetitive nerve stimulation |
| recurrent nephrotic syndrome | |
| replacement normal saline | |
| RNV | radionucleotide venography |
| RO | rule out |
| relative odds | |
| renal osteodystrophy | |
| report of | |
| ratio | |
| reflux oesophagitis | |
| radiation oncology | |
| routine order | |
| R/O | rule out |
| ROA | radiographic osteoarthritis |
| radiopaque agents | |
| right occiput anterior | |
| ROC | relative operating characteristic |
| resident on call | |
| ROD | rapid opioid detoxification |
| Relative Optical Density | |
| ROE | right otitis externa |
| ROH | alcohol (rubbing) |
| Registered Occupational Hygienist | |
| ROI | range of interest |
| reactive oxygen intermediate | |
| release of information (form) | |
| ROJM | range of joint motion |
| ROL | right occipitolateral |
| retinol | |
| ROM | range of motion |
| RON | radial optic neuropathy |
| ROP | right occiput posterior |
| removal of plaster | |
| retinopathy of prematurity | |
| ROR | reactive oxygen radicals |
| radius of rotation | |
| Rapid Onset Rate | |
| ROS | review of systems |
| removal of sutures | |
| rule out sepsis | |
| ROT | rotation |
| right occiput transverse | |
| remedial occupational therapy | |
| ROU | recurrent oral ulcer |
| ROW | Rendu-Osler-Weber Disease |
| rest of week | |
| RP | retrograde pyelogram |
| radical prostatectomy | |
| radial pulse | |
| resting pressure | |
| resting position | |
| relative potency | |
| RPA | right pulmonary artery |
| rapid plate agglutination | |
| radial photon absorptiometry | |
| Registered Physician's Assistant | |
| RPC | routine primary care |
| Restorative proctocolectomy | |
| reactive perforating collagenosis | |
| RPD | renal parenchymal disease |
| removable partial denture | |
| RPE | recurrent pulmonary embolism |
| rating of perceived exertion | |
| radical prostatectomy | |
| RPF | retroperitoneal fibrosis |
| rate of pacemaker firing | |
| relaxed pelvic floor | |
| regional progression-free | |
| renal plasma flow | |
| RPG | retrograde pyelogram |
| retrograde percutaneous gastrostomy | |
| RPH | retroperitoneal hemorrhage |
| Registered Pharmacist | |
| RPI | regional perfusion index |
| RPL | retroperitoneal lymphadenectomy |
| recurrent pregnancy loss | |
| RPN | registered practical nurse |
| resident's progress notes | |
| renal papillary necrosis | |
| RPO | right posterior oblique |
| RPP | rapidly progressive |
| radical perineal prostatectomy | |
| RPR | rotational panoramic radiography |
| rapid plasma reagin (test) | |
| RPS | refractory periods |
| Relative Percent Survival | |
| rhabdoid predisposition syndrome | |
| resting potentials | |
| RPT | Registered Physical Therapist |
| renal proximal tubule(s) | |
| RPV | right portal vein |
| relative plasma volume | |
| right pulmonary vein | |
| RQ | respiratory quotient |
| RR | respiratory rate |
| relative risk | |
| risk ratio | |
| recurrence rate | |
| recovery room | |
| regular respirations | |
| rate ratio | |
| response rate | |
| relative response | |
| RRA | Renal renin activity |
| radioreceptor assay | |
| right renal artery | |
| RRC | routine respiratory care |
| RRE | radiation-related eosinophilia |
| round, regular, and equal | |
| RRI | recurrent respiratory infection |
| renal resistive index | |
| RRM | reduced renal mass |
| right radial mastectomy | |
| RROM | resistive range of motion |
| RRP | radical retropubic prostatectomy |
| relative refractory period | |
| RRR | regular rate and rhythm |
| relative risk reduction /ratio | |
| RRT | Registered Respiratory Therapist |
| RRU | relative regional uptake |
| respiratory resistance unit | |
| RS | right side |
| resting subject | |
| Reye syndrome | |
| right septum | |
| rectal swab / rectal suppository | |
| Raynaud syndrome | |
| recurrent seizures | |
| reschedule | |
| RSA | right subclavian artery |
| recurrent spontaneous abortion | |
| radiostereometric analysis | |
| RSB | right sternal border |
| RSC | right subclavian |
| respiratory system cancer | |
| RSD | reflex sympathetic dystrophy |
| REM Sleep Deprivation | |
| RSE | Relative Standard Error |
| refractory status epilepticus | |
| RSI | rapid sequence intubation |
| repetition strain injury | |
| RSL | right sacrolateral |
| RSM | recurrent spontaneous miscarriage |
| RSO | right superior oblique |
| right salpingoophorectomy | |
| RSP | respiration |
| rapid straight pacing | |
| right sacroposterior position | |
| RSR | regular sinus rhythm |
| relative survival rate | |
| Renin secretion rate | |
| right superior rectus | |
| RSS | Repetitive Stress Syndrome |
| Regulary Scheduled Series | |
| RST | rapid screening test |
| renal artery stenosis | |
| right sacrum transverse | |
| RSV | respiratory syncytial virus |
| RSW | right-sided weakness |
| Registered Social Worker | |
| RT | radiation therapy |
| Respiratory Therapy | |
| recreational therapy | |
| response / reaction time | |
| rectal temp | |
| right | |
| right thigh | |
| RTA | renal tubular acidosis |
| ready to administer | |
| road traffic accident | |
| RTB | return to baseline |
| respiratory tuberculosis | |
| RTC | return to clinic |
| round the clock | |
| rape treatment center | |
| renal tubular cell | |
| residential treatment center | |
| RTER | return to emergency room |
| RTF | respiratory tract fluid |
| residential treatment facility | |
| return to flow | |
| RTH | radiation therapy / radiotherapy |
| right total hip | |
| RTI | reverse transcriptase inhibition |
| reproductive tract infection | |
| respiratory tract infection | |
| respiratory tract illness | |
| RTK | right total knee |
| RTL | reactive to light |
| right temporal lobectomy | |
| RTM | regression to the mean |
| routine medical care | |
| RTN | renal tubular necrosis |
| RTO | return to office |
| RTP | renal transplant patient |
| Return to Provider | |
| radiation treatment planning | |
| RTR | Registered Recreational Therapist |
| renal transplant recipient | |
| residual tumor resection | |
| RTS | retention /response times |
| real time scan | |
| radial tunnel syndrome | |
| respiratory tract secretions | |
| RTV | ritonavir |
| RTW | return to work |
| RTX | rituximab |
| RU | residual urine |
| routine urinalysis | |
| resin uptake | |
| right upper | |
| RUB | rebella virus |
| RUE | right upper extremity |
| RUG | retrograde urethrogram |
| RUI | recurring urinary infections |
| RUL | right upper lid, lip, or lung |
| right upper lobe | |
| RUQ | right upper quadrant |
| RUSB | right upper sternal border |
| RUT | rapid urease test |
| RUV | residual urine volume |
| RUX | right upper extremity |
| RV | right ventricular |
| residual volume | |
| renal vein | |
| respiratory volume | |
| rubella virus | |
| rectovaginal | |
| RVA | right ventricular apex |
| recombinant virus assay | |
| right vertebral artery | |
| right visual acuity | |
| re-entrant ventricular arrhythmias | |
| RVD | renal vascular disease |
| right ventricular dysplasia | |
| RVE | right ventricular enlargement |
| RVF | right ventricular failure |
| right visual field | |
| Residual Volume Fraction | |
| RVG | radionuclide venography |
| right ventral gluteus | |
| RVH | right ventricular hypertrophy |
| RVI | right ventricle infarction |
| RVL | renal vascular lesions |
| right vastus lateralis | |
| RVO | renal vein occlusion |
| relaxed vaginal outlet | |
| retinal venous occlusion | |
| RVP | right ventricular pressure |
| rapid ventricular pacing | |
| RVR | rapid ventricular response |
| renal vascular resistance | |
| resistance to venous return | |
| RVSP | right ventricular systolic pressure |
| RVSW | right ventricular stroke work |
| RVT | renal or retinal vein thrombosis |
| RVU | relative-value units |
| RVV | right ventricular volume |
| recombinant vaccinia virus | |
| RW | relative weight |
| ragweed | |
| relaxed wakefulness | |
| rolling walker | |
| RWM | regional wall motion |
| RWP | R-wave progression |
| ragweed pollen | |
| RWT | relative wall thickness |
| RX | prescription |
| treatment | |
| pharmacy | |
| pprescription | |
| RXN | rreaction |
| RXRS | retinoid X receptors |
Medical Abbreviations – R
