Nephrology calculators for kidney function, eGFR, electrolytes, and dialysis. Designed for nephrologists, clinicians, and medical students.
Medical Calculator – SonDoctor.com × TTKG Calculator Net K secretion by distal nephron before the effect of ADH, correcting for water reabsorption via urine osmolality. TTKG = (Urine K / Plasma K) × (Plasma Osm / Urine Osm) Urine K (mmol/L) : Urine Osm (mOsm/kg) : Plasma K (mmol/L) : Plasma Osm (mOsm/kg) : ※ … Read more
Medical Calculator – SonDoctor.com × Corrected Calcium Calculator in Hypoalbuminemia At pH 7.4, for every 1.0 g/dL drop in albumin (from 4.0), calcium decreases by 0.8 mg/dL. Corrected Ca (mg/dL) = Ca + ((4 – alb) x 0.8) Serum Calcium (mg/dL) : Serum Albumin (g/dL) :
Medical Calculator – SonDoctor.com × Corrected Sodium Calculator in Hyperglycemia Based on glucose level of 100, sodium decreases by 1.6 for every 100 mg/dL increase in glucose. Corrected Na = Na + (1.6 × (glucose – 100) / 100) Serum Sodium (mEq/L) : Serum Glucose (mg/dL) :
Medical Calculator – SonDoctor.com × Estimated Glomerular Filtration Rate (eGFR) Calculator (2) This calculator estimates eGFR using Serum Cr and Cystatin C. ※ Uses CKD-EPI Creatinine-Cystatin C equation (2021) Serum Creatinine (mg/dL): Serum Cystatin C (mg/L): Age (year): Male | Female eGFR (1) : CKD-EPI (2021) Creatinine formula (mL/min/1.73㎡) eGFR (2) : CKD-EPI (2012) Cystatin … Read more
Medical Calculator – SonDoctor.com × Calculate URR and Kt/V URR = (1 – [Post-dialysis Urea / Pre-dialysis Urea]) × 100 Kt/V = -ln(R – 0.008 × t) + (4 – 3.5 × R) × UF/W R: Post-dialysis Urea / Pre-dialysis Urea t: Dialysis time (hours) UF: Ultrafiltration volume (L) W: Post-dialysis weight (kg) Pre-dialysis BUN … Read more
Medical Calculator – SonDoctor.com × Estimated Glomerular Filtration Rate (eGFR) Calculator This calculator simultaneously computes four estimated glomerular filtration rate (eGFR) formulas. ※Body weight is only needed for Cockcroft-Gault formula. Serum Creatinine (mg/dL): Age (year): [Optional] Weight (kg): Male | Female Check if patient is Black eGFR (1): Cockcroft-Gault formula (mL/min) eGFR (2): MDRD formula … Read more