Abbreviation Meaning R respiration, (right) RA refractory anemia rheumatoid arthritis right atrium room air RAD reflex anal dilatation right axis deviation reactive airway disease radiation absorbed dose reactive attachment disorder Rad hys radical hysterectomy RAE right atrial enlargement RAI radioactive iodine RAIU thyroid reactive iodine uptake RAPD relative afferent pupillary defect RAS renal artery stenosis RATLH Robotic assisted total laparoscopic hysterectomy RATVH Radical Total Vaginal Hysterectomy RBBB right bundle branch block RBC red blood cells, red blood count RBE relative biologic equivalent RBLM recurrent benign lymphocytic meningitis RCA right coronary artery RCC renal cell carcinoma RCM restrictive cardiomyopathy right costal margin RCR rotator cuff repair RCT randomized controlled trial RD retinal detachment RDS respiratory distress syndrome (see also infant respiratory distress syndrome) RDW red cell distribution width REI Reproductive Endocrinology and Infertility REM rapid eye movement roentgen equivalent man RF rheumatoid factor rheumatic fever Renal Failure RFA Radiofrequency ablation RFLP restriction fragment length polymorphism RFT renal function test r/g/m rubs/gallops/murmurs (see heart sounds) Rh rhesus factor Rhabdo Rhabdomyolysis RHC right heart catheterization RHD Rheumatic heart disease RhF rheumatoid factor RIA radioimmunoassay RIBA radioimmunoblotting assay RICE rest, ice, compression, and elevation (treatment for a soft tissue injury) RIF rifampin RIMA reversible inhibitor of monoamine oxidase A RIND reversible ischemic neurologic deficit RL Ringer's lactate (that is, lactated Ringer's solution) RLE right lower extremity RLL right lower lobe (of lung) RLN recurrent laryngeal nerve; regional lymph node RLQ right lower quadrant (of abdomen) R&M Routine + microscopic (General analysis of urine) RML right middle lobe (of lung) RMS rhabdomyosarcoma RMSF rocky mountain spotted fever RNA ribonucleic acid RNP ribonucleoprotein RNV radionuclide ventriculography RNY Roux-en-Y anastomosis R/O rule out ROA right occipital anterior (see childbirth) ROH removal of hardware ROM range of motion rupture of membranes ROP right occipital posterior (see childbirth) retinopathy of prematurity ROS review of systems ROSC return of spontaneous circulation ROW Rest of the Week; as in, "Take 2 mg on Monday and 1 mg ROW" RPGN rapidly progressing glomerulonephritis RPLND retroperitoneal lymph node dissection RPR rapid plasma reagin test RR respiratory rate blood pressure measured with a specific sphygmomanometer relative riskRRMSrelapsing-remitting multiple sclerosis RRP Recurrent Respiratory Papillomatosis RRR regular rate and rhythm (see pulse)RRTRenal replacement therapy r/r/w rales, rhonchi, wheezes (lung sounds) RS cell Reed–Sternberg cell RSB Right sternal border RSI rapid sequence induction RSV respiratory syncytial virus R/t related to RT radiotherapy respiratory therapy reverse transcriptase RT-PCR reverse transcriptase polymerase chain reaction RTA renal tubular acidosis RTC return to clinic (appointment for outpatient for next medical examination) RTS Revised Trauma Score RTV ritonavir RUE right upper extremity RUL right upper lobe (of lung) RUQ right upper quadrant (see also regions of the abdomen) RUTI recurrent urinary tract infection RV residual volume right ventriclereview RVAD right ventricular assist device RVF right ventricular failure, or rectovaginal fistula RVH right ventricular hypertrophy RVR rapid ventricular rate (tachycardia) RVSP right ventricular systolic pressure RVT renal vein thrombosis RW rolling walker Rx or or Rx (R with crossed tail) medical prescription, prescription drug, or remedy RXN reaction
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