Receiver Operator Characteristics curves for the two equations when used to identify patients with serum concentrations of ethylene glycol and methanol that exceed the threshold at which hemodialysis is recommended
- - - - osmole gap derived using equation 1 (ethanol coefficient of 1)
----- osmole gap derived using equation 2 (ethanol coefficient of 1.25).
The points delineated by ● and ■ indicate an osmole gap cut-off of 10 derived using equations 1 and 2, respectively. The points delineated by ○ and □ indicate an osmole gap cut-off of 20 derived using equations 1 and 2, respectively.
Lynd et al. BMC Emergency Medicine 2008 8:5 doi:10.1186/1471-227X-8-5