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Calculate weight-based medication doses in mg and mL. Enter patient weight, dose per kg, and concentration for pediatric and adult nursing dose calculations.
Calculate serum anion gap from electrolytes for acid-base analysis. Enter sodium, chloride, bicarbonate, and optional potassium for AG interpretation.
Calculate albumin-corrected serum calcium for hypocalcemia assessment. Enter total calcium and albumin to get corrected calcium level in mg/dL.
Standard formula for adult CrCl estimation from serum creatinine. Multiply by 0.85 for females.
CrCl = ((140 − Age) × Weight (kg)) ÷ (72 × SCr (mg/dL)) × (0.85 if female)For obese patients (BMI >30), some protocols use adjusted or ideal body weight in numerator instead of actual weight.
Adj Weight = IBW + 0.4 × (Actual − IBW) if obeseMany drugs define dose reduction at CrCl <50, <30, or <10 mL/min — check specific agent guidance.
Compare CrCl to drug-specific renal dosing table thresholdsUpdated: July 2026
CrCl = ((140−68)×70)÷(72×1.4)×0.85 ≈ 41 mL/min. Reduce doses of renally cleared drugs per reference.
CrCl ≈ 99 mL/min — normal renal function for dosing. No adjustment for most drugs.
Using actual weight 120 kg overestimates CrCl. Recalculate with adjusted body weight per institutional protocol.
Estimate creatinine clearance for medication dosing adjustments using the Cockcroft-Gault equation. Enter patient age, body weight, sex, and serum creatinine to get CrCl in mL/min — commonly used for renally cleared drug dosing.