Electrolytes
Correction formulas and deficit replacements for electrolyte management.
Sodium Correction Calculator
Correct sodium levels in the setting of hyperglycemia.
Calcium Correction Calculator
Correct total calcium based on albumin levels.
Potassium Replacement
Estimate potassium deficit based on serum levels.
Anion Gap
Calculate anion gap for metabolic acidosis.
Clinical Overview
Electrolyte derangements require careful calculation to correct safely. Pseudohyponatremia, pseudohypocalcemia, and precise replacement protocols are common challenges in clinical practice.
Common Use Cases
- •Correcting sodium for hyperglycemia
- •Correcting calcium for hypoalbuminemia
- •Calculating potassium deficits
Clinical Pearls
Sodium Correction
The standard Katz formula adds 1.6 mEq/L to sodium for every 100 mg/dL glucose over 100. The Hillier formula (more accurate for severely elevated glucose) adds 2.4 mEq/L.
Calcium Correction
Approximately 50% of serum calcium is bound to albumin. For every 1 g/dL decrease in albumin below 4.0 g/dL, total serum calcium drops by 0.8 mg/dL.