Propylene Glycol as a Cause of an Elevated Serum Osmolality

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Abstract
Two severely burned patients experienced the onset of marked hyperosmolality during topical treatment with a cream containing silver sulfadiazine as an antimicrobial agent. Serum samples from both patients were studied for the presence of substances absorbed from the vehicle of the cream. Propylene glycol, in concentrations which were high enough to account for the difference between calculated and measured osmolality, was demonstrated in the sera of these patients by gas chromatography.

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