The FDA reported numerous complaints of inaccuracies when using the Philips Avalon Fetal Monitors, Models FM20, FM30, FM40, and FM50 with the ultrasound transducer. In Septeber, Philips issued an Important Device Safety Alert. Inaccurate output readings may lead to unnecessary interventions, failure to identify the need for interventions, and failure to identify fetal distress. The complaints most commonly occur during the second stage of labor.









