Figure 3.

Osmolal and anion gaps for patients who had ingested toxic alcohols. For patients who had ethylene glycol, isopropanol, or methanol detected by gas chromatography analysis, the osmolal gap and anion gap on initial laboratory studies were plotted. This plot includes a total of 73 patients. Eleven patients with toxic alcohols detected by GC were not included due to lack of laboratory data necessary to calculate anion gap. The data is sorted by the primary ingestion. A single case of co-ingestion of isopropanol and methanol is classified with the isopropanol group as that compound was detected in higher amount in serum for that patient. Two fatal cases each for ethylene glycol and methanol (total of 4 patients) are designated by an asterisk (*) next to the datapoint.