The clinical risk factors for plasma sodium overcorrection in patients with severe hyponatremia are well described. Unfortunately, majority of these risk factors are non-modifiable at clinical presentation e.g. exact degree of hyponatremia, age of patient. Ensuring prompt and regular repeating of the plasma sodium is potentially modifiable and helps to guide ongoing management to mitigate the eventual risk of plasma sodium overcorrection. Prevailing medical literature recommends rechecking plasma sodium every 4–6 h initially [1,2].