Corrected Na⁺ - MedSchool
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Hyperglycaemia causes movement of water out of cells into the CSF, resulting in pseudohyponatraemia. Expect a drop of 1.6mmol for every 100mg/dL (5.5mmol/L) increase in glucose concentration.
Serum Sodium
Serum Glucose
Corrected Na = Na + 1.6 (
Glucose - 7 5.5