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Medical Abbreviations A thru Z

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R – S – T

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R right
RA rheumatoid arthritis or right atrium
RAD right atrial axis deviation
RAE right atrial enlargement
RAP right atrial pressure
RBBB right bundle branch block
RBC red blood cell
RBP retinol-binding protein
RDA recommended daily allowance
RDW red cell distribution width
RIA radioimmunoassay
RIH right inguinal hernia
RLL right lower lobe
RLQ right lower quadrant
RML right middle lobe
RNA ribonucleic acid
R/O rule out
ROM range of motion
ROS review of systems
RPG retrograde pyelogram
RRR regular rate and rhythm
RT respiratory or radiation therapy
RTA renal tubular acidosis
RTC return to clinic
RU resin uptake
RUG retrograde urethogram
RUL right upper lobe
RUQ right upper quadrant
RV residual volume
RVH right ventricular hyperthrophy
Rx treatment


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s without  |  ss = one-half
SA sinoatrial
SAA synthetic amino acid
S&E sugar and acetone
SBE subacute bacterial endocarditis
SBFT small bowel follow through
SBS short bowel syndrome
SCr serum creatinine
SEM systolic ejection murmur
SG Swan-Ganz
SGA small for gestational age
SGGT serum gamma- glutamyl transpeptidase
SGOT serum glutamic- oxaloacetic transaminase
SGPT serum glutamic- pyruvic transaminase
SIADH syndrome of inappropriate antidiuretic hormone
sig write on label
SIMV synchronous intermittent mandatory ventilation
sl sublingual
SLE systemic lupus erythematous
SMO slips made out
SOAP subjective, Objective, Assessment, Plan
SOB shortness of breath
SQ subcutaneous
STAT immediately
SVD spontaneous vaginal delivery
Sx symptoms


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T&C type and cross
TAH total abdominal hysterectomy
T&H type and hold
TB tuberculosis
TBG total binding globulin
Td tetanus-diphtheria toxoid
TIA transient ischemic attack
TIBC total iron binding capacity
tid three times a day
TIG tetanus immune globulin
TKO to keep open
TLC total lung capacity
TMJ temporo mandibular joint
TNTC too numerous to count
TO telephone order
TOPV trivalent  oral polio vaccine
TPN total parenteral nutrition
TSH thyroid stimulating hormone
TT thrombin time
TTP thrombotic thrombocytopenic purpura
TU tuberculin units
TUR transurethral resection
TURBT TUR bladder  tumors
TURP transurethral  resection of prostate
TV tidal volume
TVH total vaginal hysterectomy
tw twice a week
Tx treatment,  transplant
R – S – T