Medical Calculator – SonDoctor.com
×
Electrolyte free water clearance (EFWC) Calculator
EFWC = UV x (1-((Urine Na + Urine K) / Plasma Na))
UV : Urine flow rate (L/day)
* If the 24-hour urine volume is not entered, only a POSITIVE or NEGATIVE result will be provided.
EFWC POSITIVE: Reflects free water excretion, typically seen in hypotonic urine or water diuresis.
EFWC NEGATIVE: Reflects free water retention, as in cases of impaired water excretion or ADH effect.
Nephrology
Corrected Sodium Calculator in Hyperglycemia
Corrected Calcium Calculator in Hypoalbuminemia
Corrected Sodium in Hypertriglyceridemia
Osmolality Calculator
TTKG Calculator
Urine K-to-Creatinine Ratio Calculator
Urine Na-to-K Ratio Calculator (Check High vs. Low Salt Intake)
FENa Calculator (Fractional Excretion of Sodium)
RFI Calculator (Renal Failure Index)
BUN / Creatinine Ratio Calculator
Total Sodium Deficit Calculator in Hyponatremia
Free Water Deficit Calculator in Hypernatremia
Free water clearance (FWC) Calculator
Electrolyte free water clearance (EFWC) Calculator
Hyponatremia Treatment – 3% Saline Infusion Rate Calculator (Adrogue-Madias Formula)
Calculator for Serum Na Change After Infusion (Adrogue-Madias Formula)
Infusion Rate Calculator for Hyponatremia or Hypernatremia Treatment (Adrogue-Madias formula)
Calculate Fractional Excretion of Multiple Electrolytes
Albumin to Globulin (A/G) Ratio Calculator
ABGA Calculator
Anion Gap + Delta AG Delta bicarbonate ratio Calculator
Urine Anion Gap Calculator + Urine Osmolal Gap Calculator
Calculate H⁺ concentration and pH from PaCO₂ and HCO₃⁻ (Henderson-Hasselbalch equation)
Estimated Glomerular Filtration Rate Calculator (eGFR) Four-in-One Calculator – Compare MDRD, CKD-EPI (2009 & 2021) at Once
Estimated Glomerular Filtration Rate Calculator (eGFR) (2) CKD-EPI Creatinine-Cystatin C equation (2021)
Pediatric Estimated Glomerular Filtration Rate Calculator (Pediatric eGFR)
Kidney failure risk equation calculator
HUGE (Hematocrit + Blood urea + GEnder) Calculator
Creatinine Clearance Using 24-Hour Urine & Urine Collection Adequacy Evaluation
Urine ACR Calculator (Albumin-to-Creatinine Ratio)
Urine PCR Calculator (Protein-to-Creatinine Ratio)
Calculate URR and Kt/V
nPCR Calculator
Transferrin Saturation Calculator
Erythropoiesis Injection Dose Conversion Calculator (EPO converter)
CRRT Dose Calculator