Medical calculators

BMI Body Mass Index BSA Body Surface Area IBW Ideal Body Weight ABW Adjusted Body Weight BMR Basal Metabolic Rate Body Fat % Navy Method

CrCl Creatinine Clearance eGFR CKD-EPI Formula FENa Fractional Excretion Na BUN:Cr BUN/Creatinine Ratio FEUrea Works Despite Diuretics Kt/V Dialysis Adequacy Urine Anion Gap Renal vs GI Acidosis Free Water Free Water Deficit

MAP Mean Arterial Pressure QTc Corrected QT Interval CHA₂DS₂-VASc Stroke Risk in AFib HAS-BLED Bleeding Risk TIMI (UA/NSTEMI) ACS Risk LDL (Friedewald) Calculated LDL Shock Index HR / Systolic BP ABI Ankle-Brachial Index Target HR Target Heart Rate

Corrected Na For Hyperglycemia Corrected Ca For Albumin Anion Gap Serum Anion Gap Osmolality Calculated Serum Osm Osmolar Gap Measured - Calculated Winter's Formula Expected pCO₂ SAAG Serum-Ascites Albumin Gradient Maddrey DF Alcoholic Hepatitis Na Correction Rate Hyponatraemia Safety Delta-Delta Mixed Acid-Base TTKG Transtubular K Gradient

HOMA-IR Insulin Resistance HOMA-%B Beta-cell function HbA1c Conversion Average glucose and IFCC Potassium Deficit Estimated total body K Potassium and pH Acid-base shift

A-a Gradient Alveolar-arterial O₂ Expected PaO₂ Age-adjusted FiO₂ from NC Nasal Cannula FiO₂ P/F Ratio PaO₂/FiO₂ Ratio Tidal Volume Lung-Protective, by PBW Light's Criteria Exudate vs Transudate

Pediatric Dose Weight-based dosing Renal Function Band CrCl classification Loading Dose Vd-based loading Opioid Conversion Equianalgesic Dosing Steroid Equivalence Glucocorticoid Conversion Retic Index Marrow Response

GCS Glasgow Coma Scale Wells DVT DVT Probability Wells PE PE Probability CURB-65 Pneumonia Severity MELD Liver Disease Severity APGAR Newborn Assessment NIHSS Stroke Severity sPESI PE Severity Modified Duke Criteria Infective Endocarditis Braden Scale Pressure Ulcer Risk Morse Fall Scale Inpatient Falls Risk SIRS Inflammatory Response PECARN Head Injury Paediatric CT Decision NEWS2 Deterioration Score qSOFA Sepsis Risk HEART Score Chest Pain Risk Child-Pugh Cirrhosis Severity Centor/McIsaac Strep Throat ABCD2 Stroke Risk After TIA ANC Absolute Neutrophil Count CIWA-Ar Alcohol Withdrawal Glasgow-Blatchford Upper GI Bleed STOP-BANG Sleep Apnoea Risk PHQ-9 Depression Severity GAD-7 Anxiety Severity PERC Rule PE Rule-Out Alvarado Appendicitis Likelihood Rockall GI Bleed Mortality Caprini VTE Prophylaxis Risk 4AT Delirium Screening Rumack-Matthew Paracetamol Treatment Line ECOG / Karnofsky Performance Status 4Ts Score Heparin-Induced Thrombocytopenia RCRI Perioperative Cardiac Risk ASA Grade Physical Status NEXUS C-Spine Need for Imaging Ottawa Knee Need for X-ray AUDIT-C Alcohol Use Screening RASS Sedation and Agitation Berlin ARDS ARDS Severity SOFA Organ Dysfunction CAM-ICU Delirium in the ICU ISTH DIC Score Overt DIC Canadian CT Head Minor Head Injury Sgarbossa MI With LBBB or Paced Khorana Cancer VTE Risk Glasgow-Imrie Pancreatitis Severity Ottawa Ankle Need for X-ray

EDD / Gestation Naegele Rule Paediatric Weight Estimated by Age Bishop Score Cervical Favourability Westley Croup Croup Severity PEWS Paediatric Early Warning

Maintenance IVF 4-2-1 Rule Drip Rate IV Flow Rate Fluid Bolus Resuscitation Blood Volume Estimated TBV Parkland Formula Burn Resuscitation