AACE | American Association of Clinical Endocrinologists
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AaG | Alveolar-arterial gradient
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aAR | Alveolar-arterial ratio
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Abd | Abdominal
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Acc | Accuracy
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ADL | Activities of daily living
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AFib | Atrial fibrillation
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AgCl | Aminoglycoside clearance
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AG | Anion gap
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AHA | American Heart Association
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AIDS | Acquired immunodeficiency syndrome
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AIH | Autoimmune hepatitis
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ANA | Antinuclear antibody
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ANC | Absolute neutrophil count
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AR | Adjusted ratio
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ATN | Acute tubular necrosis
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ATP | Adult Treatment Panel
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AtypHyper | Atypia hyperplasia
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Avg | Average
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B12 | Cyanocobolamine
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Bands | Band neutrophils or stab cells
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BBB | Bundle branch block
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BEE | Basal energy expenditure
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BIA | Bioelectrical impedance analysis
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Bili | Bilirubin
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Biops | Biopsies
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BMD | Bone mineral density
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BMI | Body mass index
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BM | Bowel movement
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BPD | Biparietal diameter
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BP | Blood pressure
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BSA | Body surface area
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BT | Breath test
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BUN | Blood urea nitrogen
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CAH | Chronic active hepatitis
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CaO2 | Oxygen content of arterial blood
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Cat | Category
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Ca | Calcium
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CCD | Cortical collecting duct
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CCLI | Combined clinical and laboratory index
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CC | Closing capacity
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CDC | Centers for Disease Control
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CIWA | Clinical Institute withdrawal assessment
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CI | Cardiac index
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Clear | Clearance
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Cl | Chloride
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Conc | Concentration
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Consump | Consumption
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CO | Cardiac output
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CPD | Cigarettes per day
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CPM | Counts per minute
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Creat | Creatinine
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CRL | Crown rump length
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CTP | Child Turcotte Pugh score
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CT | Computerized tomography
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CvO2 | Oxygen content of venous blood
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CVP | Central venous pressure
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CV | Closing volume
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D5W | 5% Dextrose in water solution
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DAS | Disease activity score
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DBL | Digitalis body load
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DBP | Diastolic blood pressure
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DM | Diabetes mellitus
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EBM | Evidence-based medicine
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EDC | Estimated date of confinement (delivery date)
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EGIR | European Group for Study of Insulin Resistance
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ELBW | Extremely low birth weight
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EMR | Electronic medical record
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eTo(x) | e To the power of x
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Exp | Expired (pulmonary) or Experimental (epidemiology)
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FECO2 | Fractional expired carbon dioxide
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FEV1 | Forced expired volume at one second
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FE | Fractional excretion
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Fe | Iron
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FICO2 | Fractional inspired carbon dioxide
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FIO2 | Fraction inhaled oxygen
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FLB | First live birth
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FMH | Family medical history
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FVC | Forced vital capacity
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GFR | Glomerular filtration rate
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Glu | Glucose
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HbA1C | Hemaglobin A1C
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HCO3 | Bicarbonate
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HCT | Hematocrit
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HCV | Hepatitis C virus
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HC | Head circumference
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HDL | High density lipoprotein
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HD | Hemodialysis
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Hgb | Hemoglobin
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Hgt | Height
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HOMA | Homeostasis model assessment
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HRTx | Hormone replacement therapy
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HR | Heart rate
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HTN | Hypertension
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HxFx | History of fracture
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IBW | Ideal body weight
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ID | Interdialytic period
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IFG | Impaired fasting glucose
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IGT | Impaired glucose tolerance
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IME | Indirect medical education expense
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INR | International normalized ratio
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Insp | Inspired
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IR | Insulin resistance
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ISI | International sensitivity index
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Kt/V | A measure of dialysis dosing
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K | Potassium
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LAP | Leukocyte alkaline phosphatase
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LAT | Left atrial thrombus
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LBW | Lean body weight
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LDL | Low density lipoprotein
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LMP | Last menstrual period
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ln | Natural logarithm
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log | Base 10 logarithm
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LR | Likelihood ratio
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LVH | Left ventricular hypertrophy
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Malig | Malignancy
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MAP | Mean arterial pressure
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MC3K | MedCalc 3000
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MCP | Metacarpophalangeal joint
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MedCalc Connect | A MedCalc 3000 tool for EMR integration
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MEDS | Mortality in emergency department sepsis
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MPG | Mean plasma glucose
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MPT | Metatarsophalangeal joint
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MRI | Magnetic resonance imaging
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MultiCalc | A MedCalc 3000 tool for multiple calculations
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MVBP | Mean vascular blood pressure
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NaN | Not a Number
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Na | Sodium
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NCEP | National Cholesterol Education Program
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Neg | Negative
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NF | Neurofibomatosis
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NHLBI | National Heart, Lung and Blood Institute
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NIH | National Institutes of Health
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NNH | Number needed to harm
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NNT | Number needed to treat
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Norm | Normal
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NPV | Negative predictive value
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NYHA | New York Heart Association
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O2Sat | Oxygen saturation
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OI | Oxygenation index
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ORAI | Osteoporosis risk assessment index
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OR | Odds ratio
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Osm | Osmolality
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OST | Osteoporosis self assessment tool
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PABAK | Prevalence-adjusted bias-adjusted kappa
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PBCa | Protein bound calcium
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pCO2 | Partial pressure of carbon dioxide
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PEEP | Positive end expiratory pressure
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PEER | Patient expected event rate
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PEP | Post exposure prophylaxis
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PIP | Positive inspiratory pressure
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PIP | Proximal interphalangeal joint
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pO2 | Partial pressure of oxygen
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Pos | Positive
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power(x,y) | x raised to the power of y
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PPV | Positive predictive value (statistics) or Pulse pressure variation (cardiovascular)
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Pred | Predictive
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PRU | Percent reduction of urea
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PVR | Pulmonary vascular resistance
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P_aO2 | Partial pressure of arterial oxygen
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P_Atm | Atmospheric pressure
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P_CO2 | Partial pressure of carbon dioxide
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P_H2O | Partial pressure of water vapor
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P | Pressure
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Qs/Qt | Right to left shunt fraction
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QTI | Q-T interval
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QUICKI | Quantitative insulin sensitivity check index
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RA | Rheumatoid arthritis
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RBCVol | Red blood cell volume
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Resp_Quot | Respiratory quotient
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Retic | Reticulocyte
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RFI | Renal failure index
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RPI | Reticulocyte production index
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RPN | Reverse Polish notation
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RRF | Residual renal function
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RR | R-R interval
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RR | Respiratory rate
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RSD | Residual standard deviation
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RV | Residual volume
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R | Respiratory quotient
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SARS | Severe acute respiratory distress syndrome
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SBP | Systolic blood pressure
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Segs | Segmented neutrophils
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Sens | Sensitivity
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SI | Stroke index (cardiac)
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SLE | Systemic lupus erythematosis
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SOG | Stool osmolal gap
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Spec | Specificity
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SPV | Systolic pressure variation
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sqr | Square root (math function)
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sq | Square (math function)
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SVR | Systemic vascular resistance
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SV | Stroke volume
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Sys | Systolic
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TAC | Time averaged concentration
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TBW | Total body water
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TDER | Total daily energy requirement
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Temp | Temperature
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TIBC | Total iron binding capacity
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TIPS | Transjugular intrahepatic portosystemic shunt
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TLC | Total lung capacity
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TreeCalc | A MedCalc 3000 decision tree tool
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trig | Trigonometric
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TS | Transferrin saturation
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TTKG | Transtubular potassium gradient
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UBPI | Ultrasound bone profile index
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UF | Ultrafiltrate
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UKPDS | United Kingdom prospective diabetes study
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UNOS | United Network for Organ Sharing
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URR | Urea reduction ratio
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VCO2 | Carbon dioxide production
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VDU | Volume of distribution of urea
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VentIndex | Vetilation index
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VExp | Expired volume (usually over one minute)
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VitalCap | Vital capacity
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VLDL | Very low density lipoprotein
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VO2 | Oxygen consumption
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Vol | Volume
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WBC | White blood count
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WDef | Water deficit
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Wgt | Weight
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WHO | World Health Organization
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