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 atrium; rheumatoid arthritis; right arm
Ra radium
RAA renin-angiotensin-aldosterone (system)
RAAS renin angiotensin aldosterone system
RAC right antecubital
RACE rescue, alarm, confine, extinguish (fire safety)
RAD radiation absorbed dose; right axis deviation; rapid applications development; reactive airway disease
rad radical; root (radix); radial
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
RAO right anterior oblique
RAP resident assessment protocol; recurrent abdominal pain
RAPD relative afferent pupillary defect
RAS renal artery stenosis; renin-angiotensin system; reticular activating system
RAST radioallergosorbent test
RAT rapid assessment and treatment
RATx radiation therapy
rb right bundle
Rb Rubidium (element)
RBBB right bundle branch block
RBC red blood cell(s); red blood count
Rbcs red blood cells
RBE relative biological effectiveness
rBGH recombinant bovine growth hormone
RBRVS resource-based relative value scale
rBST recombinant bovine somatotropin
RBV read back and verify
RCA right coronary artery
RCF right cubital fossa
RCL radial collateral ligament
RCM right costal margin
RCP respiratory care practitioner
RCR replication competent retrovirus
RCS Registered Cardiac Sonographer
RCT randomized clinical/controlled trial
RD retinal detachment; respiratory distress; respiratory disease; registered dietitian; right deltoid; raynaud disease; radial deviation; Registered Dietician
RDA recommended daily/dietary allowance
RDH Registered Dental Hygienist
RDI reference daily intake
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 refuse(d); referral/refer
refl reflex
reg regular
REHAB rehabilitation
REI reproductive endocrinology
rel related; relative
rem removal
REM rapid eye movement (sleep)
REMS risk evaluation and mitigation strategy
rep repeated (repetatur)
reps repetitions
RES reticuloendothelial system
resc resuscitation; rescue
resid residual
resp response; respiration
RET rational emotive therapy; esotrophia (right)
retics reticulocytes
retro retrograde
rev review; reverse; revision
RF rheumatoid factor; retroflexed; radio frequency
RFA radiofrequency ablation; right forearm
RFB rifabutin
RFFF radial forearm free flap
RFt right foot
RFT renal function test
RG right gluteal/gluteus
RH right hand
Rh Rhodium (element); Rhesus factor
RHD rheumatic heart disease
RHF right heart failure
RhoGAM rh immune globulin
RIA radioimmunoassay
RIBA recombinant immunoblot assay
RICE rest, ice, compression, elevation
RID radial immunodiffusion
RIE recorded in error
RIF rifampin; right iliac fossa
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
RL Ringer's Lactate; right leg; 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 ruptured membranes; risk management; respiratory movement
RMA refuse(s) medical assistance; right medial ankle
RML right mediolateral; right middle (lung) lobe
RMP rifampin
RMSF rocky mountain spotted fever
RMT retromolar trigone
RN Registered Nurse
Rn Radon (element)
RN-C Registered Nurse-Certified (by ANCC)
RNA ribonucleic acid
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
ROFA right outer forearm
ROI release of information; region of interest
ROM rupture of membranes; range of motion
ROP retinopathy of prematurity; right occiput posterior (position)
ROPD reversible obstructive pulmonary disease
ROS review of systems; reactive oxygen species; review of symptoms
ROT right occiput transverse
rot. rotation
RP radial pulse; Raynaud's phenomenon; retrograde pyelography; retinitis pigmentosa
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 rifapentine; registered physical therapist
RQ respiratory quotient
RR relative risk; respiratory rate; recovery room
RRA registered record administrator
RRE round, reactive, equal
RRL registered records librarian
rRNA ribosomal RNA
RRP radical retropubic prostatectomy; recurrent respiratory papillomatosis
RRR regular rate and rhythm
RRT renal replacement therapy; Registered Respiratory Therapist
RS remitting seronegative; respiratory system; Reiter's syndrome
RS3PE symmetrical synovitis with pitting edema
RSB regular sinus bradycardia
RSBI Rapid Shallow Breathing Index
RSC right subclavian
RSD reflex sympathetic dystrophy (syndrome)
RSI repetitive strain injury; rapid sequence intubation
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
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 leg; right upper (lung) lobe
RUO research use only
rupt rupture
RUQ right upper quadrant (abdomen)
RUT right upper thigh
RV right ventricle/ventricular; right ventricle; return visit; retroverted; rotavirus; residual volume
RVA rabies vaccine, adsorbed
RVC responds to verbal commands
RVCT report of verified case tuberculosis
RVEF right ventricular ejection factor
RVF right ventricular function; right ventricular failure
RVH right ventricular hypertrophy
RVM right ventricular mean
RVR rapid ventricular response
RVS Registered Vascular Specialist
RVT right vastus lateralis
RVVC recurrent vulvovaginal candidiasis
Rx prescription
Rxn reaction
RXT exotropia (right)