Case Report

Green Urine Discoloration due to Propofol Infusion: A Case Report

Figure 2

The main metabolic pathway of propofol. In phase I, the metabolism of propofol to 2,6-diisopropyl-1,4-quinol by cytochrome P450 is the rate-limiting step in the formation of 1-QS, 4-QG, and 4-QS. In phase II, the major metabolite was a glucuronic acid conjugate of propofol (propofol-glucuronide) and the minor metabolites were quinol derivatives (1-QG, 4-QG, and 4-QS) [14].
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