MDCalc

All calculations must be re-checked by hand and should not be used alone to guide patient care. See disclaimer for more. Light green = required. Once required data is entered, click anywhere for results.

Equations

• A-a O₂ Gradient
• Abs Neutrophil Count
• Abs Retic Count (Retic Index)
• Age
• Anion Gap (w/Delta Gap)
• Basal Energy Expenditure
• Bayes Sensitivty & Specificity
• Bicarb Deficit
• BMI/Surface Area
• Calcium Correction in Hypoalbuminemia
• Cockcroft-Gault GFR
• Cardiac Output (Fick)
• Corrected QT (QTc)
• Corrected Sodium
• CSF WBC Correction for RBCs
• Endotracheal Tube Size for Children
• FENa
• FEUrea
• Ideal Body Weight by Height
• LDL (Calculated)
• Maddrey's Discriminant Function
• Maintenance Fluids
• MDRD GFR
• Mean Arterial Pressure (MAP)
• Oxygenation Index
• Parkland Burns
• Pedi Ins & Outs
• Sodium Deficit
• Serum Osmolality
• Stool Osmolal Gap
• Transtubular Potassium Gradient
• Water Deficit
• Winter's Formula

Scores

• APACHE II Score for ICU Mortality
• APGAR Score
• Cardiac Risk (Framingham)
• CHADS2 Score for Afib
• PORT Score / CAP Risk
• Glasgow Coma Score
• MELD Score
• Ottawa Ankle and Pittsburgh Knee Rules
• Ranson's Pancreatitis Mortality
• San Francisco Syncope Rule
• Strep Probability Score
• TIMI Score for UA/NSTEMI
• TIMI Score for STEMI
• Well's Criteria for PE

A wee bit about MDCalc

This site was created by a third-year medical student who got tired of having to wade through Google searches to find an easy to use, quick calculator for his medical equations. Many thanks to the multiple resources and references I've used to put this list together, including Medcalc, Pocket Medicine, 2nd Edition, eMedicine, and notes and teachings from my preclinical and clincal instructors.