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Re: Diagnosis after Oximetry test

Posted by sleep tech on May 17, 2002 at 05:18:25:

In Reply to: Diagnosis after Oximetry test posted by Engineer on May 17, 2002 at 02:52:52:

A sleep specialist ordered the overnight oximetry? I wonder why you weren't sent for a formal sleep study, aka a polysomnogram. A lot more information can be gathered from a sleep study compared with a simple overnight oximetry. A person with sleep apnea doesn't always have significant drops in their oxygen level and this is the main reason the entire picture needs to be looked at (i.e. your sleep stages, EEG arousals, airflow and respiratory effort, etc...) and not just your oxygen levels and heart rates.

With that being said, the numbers you indicate and especially your symptoms certainly do sound like sleep apnea. Typically we don't want to see a persons oxygen level drop below 90% at night. And yes, your heart rate will slow down and speed up in correlation with having sleep apnea. At the end of each apnea or hypopnea, your brain usually wakes up briefly and your heart rate increases.

You ask "is this enough to justify CPAP?" That's best left for your sleep specialist to answer. I'm still confused as to why you didn't have a full polysomnogram.

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