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Hello I'm Dr Chip
Do you have either a heart or a lung problem?
And how exactly are you checking your O2 saturation?
And do you have either a heart or a lung problem?
I just needed to know if you had any heart or lung problems
I asked that because if the 72 is accurate only in that case could it be that low and then yes you need to be in the ER
Please let me know if you need any more information