I'm not sure what literature you are referring to on this point, but
this has certainly not been my experience. At sea level, I would consider
pulse oximetry measurements of 94% and below as hypoxia that requires an
explanation. I would work these patients up to identify causes of the
Additionally, the term "infant" generally refers to children 12 months
and below. In my original note, I indicated that very young infants (eg.
2 months and below) without pulmonary or cardiac disease should have pulse
oximetry measurements in the 99% to 100% range (generally higher than
older infants, older children, and adults). This has been my experience.
Again, reliability of the measurement is the key. We get many
referrals from other centers for "hypoxic" oxygen saturation measurements
of 90% and lower, only to find that when we measure it in our ED, their
pulse oximetry is 99%.
On Tue, 24 Jun 1997 [log in to unmask] wrote:
> One additional point:
> There is some literature to suggest that otherwise normal infants with
> simple URIs can have pulse oximeter readings between 90 and 95 percent.
> The significance of this is unknown but since most infants and young
> children who have colds never have oxygen saturation measured and
> obviously have good outcomes, we can assume that it has little or no
> Brent King
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