Depends on age...: Pulse oximetry is a standard mechanism to determine fairly accurately (most of the time) the oxygen saturation of the blood. The desirable saturation level varies based on infant/child age and multiple other considerations such as chronic lung disease, heart defects, body temperature, etc. However, for most children most of the time, we prefer seeing the level in the mid to upper 90's.
Answered 2/4/2016
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