Corrected sodium

Glucose-corrected serum sodium (hyperglycaemia)

Adjusts the measured sodium for the dilutional effect of a high glucose, so a hyperglycaemic patient is not mistaken for having true hyponatraemia. Corrected sodium = measured sodium + a factor for every mmol/L the glucose is raised.

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Appears in these tutorials

See this calculator worked on a real patient, then read the teaching around it.

Type one diabetes02_001
Worked example: Siiri Savolainen, 14
Open tutorial
Diabetic ketoacidosis02_002
Worked example: Danni Tucker, 23
Open tutorial
Vomiting in paediatric patients14_008
Worked example: Harper Richards, 12
Open tutorial
Hyponatraemia15_105
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Hypernatraemia15_108
Worked example: Max Hartley, 16
Open tutorial