According to the reporter, the patient had low saturation on 83-89% on monitor using battery power.The patient was tried to another monitor which was plugged on main, it was observed for full 10 minutes and consistently above 97%.Checked with third monitor for corroboration, also reading saturation above 97%.The unit was fully tested and all of the outputs on the spo2 monitor were within specification.There was a slight lag when the unit was tested on battery power but the results were within operating range.There was no reported patient outcome.
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