🧮 Clinical Calculators
Bedside tools for renal function, dosing, anticoagulation and therapeutic drug monitoring. Formulas, units and reference ranges are presented in English throughout — adjust the reference ranges to your own laboratory.
Renal & Electrolytes
- CrCl — Creatinine clearance (Cockcroft-Gault)
- eGFR — CKD-EPI 2021, race-free
- Sodium Correction — Hyponatraemia (Adrogue-Madias) and hypernatraemia (free water deficit)
- Corrected Calcium — Albumin-adjusted serum calcium
- Anion Gap — With albumin correction and delta ratio
- Serum Osmolality — Calculated osmolality and osmolar gap
Cardiovascular
- HAS-BLED — Bleeding risk on anticoagulation
- CHA₂DS₂-VASc — Stroke risk in non-valvular AF
- QTc — Bazett, Fridericia, Framingham and Hodges compared
- Digoxin Loading Dose — Volume of distribution adjusted for renal function
Infection & Antimicrobials
- Antibiotic Dosing — Renal-function-based dosing, 49 agents
- Vancomycin — Empiric dosing and AUC-based monitoring
- Aminoglycoside Kinetics — Individualised elimination from two measured levels
Anticoagulation & Haematology
- Enoxaparin — Weight-based dose with renal adjustment
- Iron Deficit — Ganzoni equation for parenteral iron
Dosing, Organ Function & Other
- Body Weight & BSA — Ideal and adjusted body weight, BMI, body surface area
- Corrected Phenytoin — Albumin-adjusted, with renal impairment option
- Child-Pugh — Liver disease severity for hepatic dose adjustment
- Steroid Conversion — Glucocorticoid equivalent dosing
- Carboplatin AUC — Calvert formula dosing
- NIHSS — Stroke severity score