Fig. 1From: Retrospective analysis of pulse oximeter alarm settings in an intensive care unit patient populationTotal alarm rate and reduction. a Total SpO2 alarm rate over all 962 patient records for four oxygen saturation thresholds and delay times from 10 to 60 s. The diamond on each line indicates the settings detailed further. b Percent reduction in alarm rate caused by changing the alarm conditions relative to the alarm rate at a threshold of 90 % and delay of 15 sBack to article page