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Clinical
Common bedside and lab-derived medical calculation tools.
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Anion Gap
Calculated serum anion gap from routine electrolytes.
AG = Na - (Cl + HCO3)
Corrected Calcium
Albumin-corrected total calcium estimate.
Corrected Ca = measured + 0.8 × (4 - albumin)
Creatinine Clearance (CrCl)
Estimated creatinine clearance from age, sex, weight, and creatinine.
Cockcroft-Gault equation
Mean Arterial Pressure (MAP)
Perfusion pressure estimate from blood pressure values.
MAP = (SBP + 2 × DBP) / 3