Centilo

Nephrology

Schwartz GFR, CKiD U25, FENa, creatinine clearance, urine K/Cr ratio, urine anion gap, Kt/V

Schwartz GFR

Estimates glomerular filtration rate in children using the bedside Schwartz equation

Fractional Excretion of Sodium (FENa)

Calculates fractional excretion of sodium to differentiate prerenal from intrinsic renal causes of acute kidney injury

CKiD Under-25 GFR

Estimates GFR in children and young adults with CKD using the CKiD U25 2021 equation with creatinine, cystatin C, and BUN

Urine Potassium/Creatinine Ratio

Evaluates renal potassium excretion using the urine potassium-to-creatinine ratio for hypokalemia and hyperkalemia workup

Urine Anion Gap

Calculates urine anion gap to distinguish GI bicarbonate loss from renal tubular acidosis in hyperchloremic metabolic acidosis

Kt/V Dialysis Adequacy

Calculates single-pool Kt/V using the Daugirdas second-generation formula and urea reduction ratio (URR) for hemodialysis adequacy assessment

Professional Resources — Tools used by pediatricians for renal assessment

Pediatric Nephrology HandbookClinical reference for pediatric kidney disease and electrolytes~$80via AmazonElectrolyte Reference CardQuick-reference for pediatric electrolyte normal values and corrections~$10via Amazon