Clinical tools & calculators
The scores and calculations you reach for at the bedside, with the evidence behind each one. Everything is worked out in your browser — nothing you type about a patient leaves this device.
12 tools
Paediatrics & Neonatology
APGAR Score
Condition of the newborn at 1 and 5 minutes.
General Practice
Albumin-Corrected Calcium
Total calcium adjusted for the serum albumin.
General Practice
Body Mass Index
Weight relative to height, with WHO categories.
Cardiology
CHA₂DS₂-VASc Score
Stroke risk in non-valvular atrial fibrillation.
Respiratory Medicine
CURB-65
Severity of community-acquired pneumonia and site of care.
Nephrology
Creatinine Clearance (Cockcroft–Gault)
Estimated creatinine clearance for drug dosing.
Emergency & Critical Care
Glasgow Coma Scale
Level of consciousness after head injury or acute illness.
Emergency & Critical Care
Mean Arterial Pressure
Average perfusion pressure across the cardiac cycle.
Paediatrics & Neonatology
Paediatric Maintenance Fluids
Hourly maintenance rate by the Holliday–Segar method.
Nephrology
Serum Anion Gap
Unmeasured anions, for classifying a metabolic acidosis.
Emergency & Critical Care
Wells Score (DVT)
Pre-test probability of deep vein thrombosis.
Emergency & Critical Care
qSOFA Score
Bedside screen for sepsis-related organ dysfunction.
No tools matchThe catalogue is growing — tell us which calculator you need and we’ll add it. Suggest one.
These tools support clinical judgement; they do not replace it. Check every result against the patient in front of you and your local guidance.