Urine Fluorescence in Ethylene Glycol Poisoning

A 38-year-old man presented to the emergency department after reportedly ingesting antifreeze. He appeared to be intoxicated and was agitated and combative; chemical sedation was induced. Initial laboratory studies revealed a pH of 7.0, an anion gap of 22 mmol per liter, and an osmolar gap of 79 mOsm. It was noted that the patient's urine fluoresced under ultraviolet light (in the basin on the left), as compared with a negative control (in the basin on the right), which shows the purple reflection of the ultraviolet light (arrow). The patient received fomepizole, thiamine, folate, pyridoxine, and bicarbonate; he subsequently underwent . . .