The accuracy of pulse oximetry monitor orders for identifying infants with bronchiolitis who are being continuously monitored is unknown. In this 56-hospital repeated cross-sectional study, investigators used direct bedside observation to determine continuous pulse oximetry monitor use and then assessed if an active continuous monitoring order was present in the electronic health record. Investigators completed 3,612 observations of infants aged 8 weeks to 23 months hospitalized with bronchiolitis and on room air. Most monitored infants did not have an active monitoring order (sensitivity 49% [95% CI, 41-57]). The positive predictive value of a monitoring order was 77% (95% CI, 72-82), and the negative predictive value was 69% (95% CI, 61-77). Teams intending to measure continuous pulse oximetry use should understand the limitations of using electronic health record orders as a stand-alone measure.