Sodium Correction Calculator
Enter the required values below to run the educational estimation.
Understanding Hyperglycemia-Induced Hyponatremia
When blood sugar levels rise severely, glucose cannot easily enter insulin-deficient cells. The high extracellular glucose concentration increases blood osmolality, creating an osmotic gradient that draws intracellular water into the vascular space.
Corrected vs. Measured Sodium
The influx of water dilutes serum sodium concentration. This measured hyponatremia is not due to a true sodium deficit, but rather a fluid shift. Correcting the sodium helps clinicians understand the patient's true electrolyte and water balance.
Clinical Implications for Fluid Therapy
Understanding corrected sodium is vital when managing diabetic emergencies like diabetic ketoacidosis (DKA) or hyperosmolar hyperglycemic state (HHS). It guides the selection of intravenous fluids to prevent cerebral edema.
When to Seek Urgent Medical Attention
- Severe confusion, lethargy, difficulty waking up, or seizures.
- Severe shortness of breath, rapid breathing, or chest pressure.
- Extreme vomiting, severe headache, or sudden visual changes.
Frequently Asked Questions
Elevated glucose acts as an osmotically active particle, pulling water from the cells into the bloodstream. This dilutes the concentration of sodium, causing a 'pseudo-hyponatremia'.
This calculator uses the standard factor of 1.6 mEq/L sodium correction for every 100 mg/dL rise in glucose above 100 mg/dL. Some clinical settings use a 2.4 factor for very high glucose levels.
