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Calculate estimated glomerular filtration rate (eGFR) using the CKD-EPI 2021 equation. Assess kidney function and CKD staging from serum creatinine.
Calculate creatinine clearance (CrCl) using the Cockcroft-Gault equation. Used for renal drug dosing adjustments based on kidney function.
Calculate corrected QT interval using Bazett, Fridericia, and Framingham formulas. Assess QT prolongation risk from ECG measurements.
Calculate the MELD and MELD-Na scores to assess liver disease severity and transplant priority. Uses bilirubin, INR, creatinine, and sodium.
Calculate the Child-Pugh score to classify the severity of chronic liver disease and estimate prognosis. Uses bilirubin, albumin, INR, ascites, and encephalopathy.
Calculate the anion gap and albumin-corrected anion gap to help evaluate metabolic acidosis. Essential for the ER and ICU workup.
Calculate the alveolar-arterial oxygen gradient to evaluate the cause of hypoxemia. Differentiates lung pathology from hypoventilation.
Calculate corrected calcium adjusted for albumin levels. Essential for accurate interpretation of total calcium in hypoalbuminemic patients.
Interpret arterial blood gas (ABG) results to identify acid-base disorders. Determines primary disorder and compensation status from pH, pCO₂, and HCO₃⁻.
Estimate PaO₂ from pulse oximetry SpO₂ readings using the oxygen-hemoglobin dissociation curve approximation.
Convert laboratory values between conventional (US) and SI (international) units. Covers 20 common lab tests.