Accutron requested and received the unit subject of the event for evaluation.The unit was tested and was found to be operating according to specifications.The ultra pc% flowmeter user manual states (2), "patient should always be closely monitored during nitrous oxide use.If patient has an adverse reaction, reduce or stop the flow of nitrous oxide as needed.The o2 flush button can be used to rapidly purge the lines of n2o.If patient does not show signs of quick recovery, remove nasal mask and treat with pure oxygen from either the o2 resuscitator fitting or an auxiliary oxygen tank using a demand valve, oxygen assisted manual resuscitator, or equivalent.Call for emergency assistance if rapid response is not achieved." no additional issues have been reported.
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