Critical Care
22 of 62 calculators
- CrClCreatinine clearance (Cockcroft–Gault)Estimates creatinine clearance for renal drug dosing, with every dosing weight compared side by side.
- IBWIdeal body weight (Devine)Devine ideal body weight from height and sex, used for weight-based dosing and ventilator settings.
- AdjBWAdjusted body weightIdeal body weight plus 40% of the excess, for dosing in patients above ideal weight.
- Vanco AUCVancomycin AUC dosingAUC-guided vancomycin dosing from population estimates or from two levels, with a live drug-level curve.
- Gent/Tobra/AmikAminoglycoside dosing (gentamicin, tobramycin, amikacin)Extended-interval and traditional dosing, and adjustment from levels, with a live drug-level curve.
- FENaFractional excretion of sodium (FENa)Separates prerenal from intrinsic acute kidney injury.
- FEUreaFractional excretion of urea (FEUrea)Prerenal versus intrinsic AKI when the patient has received diuretics.
- AGAnion gap (with albumin correction)Serum anion gap, albumin-corrected gap, and delta-delta ratio.
- Winter'sWinter's formula (expected PaCO₂)Checks respiratory compensation in metabolic acidosis.
- Osm gapCalculated osmolality and osmolal gapCalculated serum osmolality and the gap versus measured, for toxic alcohols.
- Na corrSodium correction for hyperglycemiaCorrected sodium using the Katz (1.6) and Hillier (2.4) factors.
- FWDFree water deficitWater deficit in hypernatremia using age- and sex-based total body water.
- Wells PEWells criteria for pulmonary embolismPretest probability of pulmonary embolism.
- qSOFAqSOFABedside screen for poor outcome in suspected infection outside the ICU.
- GCSGlasgow Coma ScaleLevel of consciousness from eye, verbal, and motor responses.
- MAPMean arterial pressureMAP from systolic and diastolic pressure.
- SIShock indexHeart rate divided by systolic blood pressure.
- A–aA–a oxygen gradient and P/F ratioAlveolar–arterial gradient, expected value for age, and PaO₂/FiO₂ ratio.
- PBW VtPredicted body weight and tidal volumeARDSNet predicted body weight and 4 to 8 mL/kg tidal volumes.
- mcg/kg/minWeight-based infusion rateConverts a weight-based dose to mL/h from the bag concentration.
- ABLEstimated blood volume and allowable blood lossEBV by age group and the blood loss allowed before reaching a target hematocrit.
- ParklandParkland formula for burns24-hour resuscitation fluid for burns, split into the first 8 and next 16 hours.
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