Patient appeared to be desaturating to the 70's per massimo forehead pulse oximetry sensor.Interventions immediately began to improve oxygenation.No improvement per pulse ox.Pulse ox was lined up with pupil, headband properly placed, full pleth and carat with no indication of inaccurate reading per massimo guidelines.New senor placed in the same position as the old sensor and resulting in a reading of 100% spo2.Arterial blood gas sent showing hyperventilation and hyper oxygenation as a result of interventions based on faulty original pulse ox reading.Fda safety report id # (b)(4).
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