Browse Medical Abbreviations

r rate; roentgen
R respiration; right
R&D research and development
R&R rate and rhythm
R&W recreation and welfare
R-L right to left
R-V rectovaginal
R.B.C. red blood cells
R/F refill
R/L right to left
R/O rule out
R/S reschedule
R/T related to
R0 basic reproduction number (R naught)
RA right arm; right atrium; rheumatoid arthritis
Ra radium
RAA renin-angiotensin-aldosterone (system)
RAAS renin angiotensin aldosterone system
RAC right antecubital
RACE rescue, alarm, confine, extinguish (fire safety)
rad radical; radial; root (radix)
RAD reactive airway disease; rapid applications development; right axis deviation; radiation absorbed dose
RADAR risk assessment of drugs analysis and response; radio detecting and ranging
RAE right atrial enlargement
RAFa right anterior forearm
RAHA hemagglutination assay
RAI radioactive iodine
RAID rapid assessment, interface and discharge
RAIU radioactive iodine uptake
RAM rapid alternating movements
RANA rheumatoid arthritis nuclear antigen
RANK receptor activator of nuclear factor kB
RAO right anterior oblique
RAP resident assessment protocol; recurrent abdominal pain
RAPD relative afferent pupillary defect
RAS reticular activating system; renin-angiotensin system; renal artery stenosis
RAST radioallergosorbent test
RAT rapid assessment and treatment
RATx radiation therapy
Rb rubidium [element]
rb right bundle
RB retinoblastoma
RBBB right bundle branch block
RBC red blood cell(s); red blood count
Rbcs red blood cells
RBE relative biological effectiveness
RBF renal blood flow
rBGH recombinant bovine growth hormone
RBRVS resource-based relative value scale
rBST recombinant bovine somatotropin
RBV read back and verify
RCA right coronary artery
RCAD renal cysts and diabetes
RCC renal cell carcinoma
RCDP rhizomelic chondrodysplasia punctata
RCF right cubital fossa
RCL radial collateral ligament
RCM restrictive cardiomyopathy; red cell mass; right costal margin
RCP Royal College of Physicians; respiratory care practitioner
RCR replication competent retrovirus
RCS Registered Cardiac Sonographer
RCT randomized controlled trial
RD retinal detachment; respiratory distress; respiratory disease; registered dietitian; right deltoid; Raynaud disease; Registered Dietician; radial deviation
RDA recommended daily/dietary allowance; representational difference analysis
RDH Registered Dental Hygienist
RDI reference daily intake
rDNA ribosomal DNA; recombinant DNA
RDoC Research Domain Criteria
RDP random donor platelets
RDS respiratory distress syndrome
RDT rising dose tolerance
RDU rheumatic disease unit
RDW red cell distribution width
Re rhenium [element]
RE right eye; reproductive endocrinologist
ReA reactive arthritis
REBT rational emotive behavioral therapy
rec recommend or recommended
recc recommend or recommended
REE resting energy expenditure
ref referral/refer; refuse(d)
refl reflex
reg regular
REHAB rehabilitation
REI reproductive endocrinology
rel related; relative
REM rapid eye movement (sleep)
rem removal
REMS risk evaluation and mitigation strategy
rep repeated (repetatur)
reps repetitions
RES reticuloendothelial system
resc rescue; resuscitation
resid residual
resp response; respiration
RET esotrophia (right); rational emotive therapy
retics reticulocytes
retro retrograde
rev revision; reverse; review
RF retroflexed; rheumatoid factor; radio frequency
RFA radiofrequency ablation; right forearm
RFB rifabutin
RFFF radial forearm free flap
RFLP restriction fragment length polymorphism
RFS recurrence-free survival
RFT renal function test
RFt right foot
RG right gluteal/gluteus
RH right hand; relative humidity
Rh Rhesus (factor); rhodium [element]
RHD rheumatic heart disease
RHF right heart failure
rhGH recombinant human growth hormone
RhIG Rh immune globulin
rhNGF recombinant human nerve growth factor
RI resistive index
RIA radioimmunoassay
RIBA recombinant immunoblot assay
RICE rest, ice, compression, elevation
RID radial immunodiffusion
RIE recorded in error
RIF right iliac fossa; rifampin
RIFA right inner forearm
RIG rabies immune globulin
RIH right inguinal herniorrhaphy
RIND reversible ischemic neurologic deficit
RIU radioactive iodine uptake (test)
RK radial keratotomy; rhodopsin kinase
RL right leg; Ringer's Lactate; right lateral
RLE right lower extremity
RLF retrolental fibroplasia
RLFa right lateral forearm
RLL right lower (lung) lobe
RLQ right lower quadrant (abdomen)
RLS restless legs syndrome
RLW right lateral wrist
RM respiratory movement; risk management; ruptured membranes
RMA right medial ankle; refuse(s) medical assistance
RML right mediolateral; right middle (lung) lobe
RMP rifampin
RMSF rocky mountain spotted fever
RMT retromolar trigone
Rn radon [element]
RN Registered Nurse
RN-C Registered Nurse-Certified (by ANCC)
RNA ribonucleic acid
RNAi RNA interference
RNFA Registered Nurse First Assistant (surgery)
RNP ribonucleoprotein
RNST reactive non stress test
Ro Ro antigen
RO reverse osmosis; rule out
ROA right occiput anterior
ROC receiver operating characteristic
ROD renal osteodystrophy
ROFA right outer forearm
ROI region of interest; release of information
ROM range of motion; rupture of membranes
ROP retinopathy of prematurity; right occiput posterior (position)
ROPD reversible obstructive pulmonary disease
ROS review of symptoms; reactive oxygen species; review of systems
ROT right occiput transverse
rot. rotation
RP retinitis pigmentosa; radial pulse; Raynaud's phenomenon; retrograde pyelography
RPE ratings of perceived exertion; retinal pigment epithelium
RPF renal plasma flow
RPG retrograde pyelogram
RPGN rapidly progressive glomerulonephritis
RPh registered pharmacist
RPM revolutions per minute
RPO right posterior oblique
RPP rate pressure product
RPR rapid plasma reagent (test)
RPT registered physical therapist; rifapentine
RQ respiratory quotient
RR recovery room; relative risk; respiratory rate; relative risk (ratio)
RRA registered record administrator; Radioiodine remnant ablation
RRE round, reactive, equal
RRL registered records librarian
rRNA ribosomal RNA
RRP radical retropubic prostatectomy; recurrent respiratory papillomatosis
RRR regular rate and rhythm
RRT Registered Respiratory Therapist; renal replacement therapy
RS Reiter's syndrome; remitting seronegative; respiratory system
RS3PE symmetrical synovitis with pitting edema
RSB regular sinus bradycardia
RSBI Rapid Shallow Breathing Index
RSC right subclavian
RSD reflex sympathetic dystrophy
RSI rapid sequence intubation; repetitive strain injury
RSO right salpingo oophorectomy; Radiation Safety Officer
RSR regular sinus rate/rhythm
RST regular sinus tachycardia
RSV Rous sarcoma virus; respiratory syncytial virus
RT radiation therapy; related to; registered therapist; respiratory therapy
rt right
RT-PCR reverse transcriptase polymerase chain reaction
rT3 reverse triiodothyronine
RTA renal tubular acidosis; road traffic accident
RTC road traffic collision; return to clinic
RTF ready to feed; resident treatment facility
RTI reverse transcriptase inhibitors; respiratory tract infection
RTT referral to treatment
RTV ritonavir (antiviral drug)
RTW return to work
Ru ruthenium [element]
RUA right upper arm
RUD right uterine displacement
RUE right upper extremity
RUG resource utilization group; retrograde urethrogram
RUL right upper (lung) lobe; right upper leg
RUO research use only
rupt rupture
RUQ right upper quadrant (abdomen)
RUT right upper thigh
RV residual volume; rotavirus; retroverted; return visit; right ventricle; right ventricle/ventricular
RVA rabies vaccine, adsorbed
RVAD right ventricular assist device
RVC responds to verbal commands
RVCT report of verified case tuberculosis
RVEF right ventricular ejection fraction
RVF right ventricular failure; right ventricular function
RVH right ventricular hypertrophy
RVM right ventricular mean
RVOT right ventricular outflow tract
RVR rapid virologic response; rapid ventricular response
RVS Registered Vascular Specialist
RVSP right ventricular systolic pressure
RVT right vastus lateralis
RVVC recurrent vulvovaginal candidiasis
Rx prescription (L. recipere)
Rxn reaction
RXT exotropia (right)
RYR ryanodine receptor