Mild 146-149

Moderate 150-169

Severe 170 above

Calculate the osmolarity too

2Na + glucose + urea

Symptom base on osmolarity

350 symptomatic

375 ataxia, irritability

400 seizure, coma, lethargy

Differential diagnosis as picture




Calculate rate of infusion from here: https://www.mdcalc.com/sodium-correction-rate-hyponatremia-hypernatremia

Correction rate not more than 0.5mmol/L/H

Not more than 10mmol/L/Day

Too fast will cause cerebral edema.

*Resuscitation fluid is always NS or HM. Only choose desire type of fluid after patient hemodynamically stable.

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