Medical Term:

calculated serum osmolality

 

Definition: the calculation of serum osmolality from serum sodium, glucose, and urea nitrogen values by a variety of formulae, the most common of which is: 1.86 × [Na] (mmol/L + glucose (mg/dL)/18 + BUN (mg/dL)/2.8.

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Examples: glitazone, GI cocktail, etc.

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