pulse oximeter

Ed Hoffer ehoffer at GMAIL.COM
Wed May 16 19:25:26 UTC 2018


In my office it was obvious - either no reading at all or obviously false (O2 sat of 80 in patient pink and in distress). I found simplest was to have them sit on one hand for few minutes while I examined other parts. Rarely needed hot water.
Ed
Edward Hoffer MD, FACC

Sent from my iPhone

> On May 16, 2018, at 1:06 PM, ROBERT M BELL <0000000296e45ec4-dmarc-request at LIST.IMPROVEDIAGNOSIS.ORG> wrote:
> 
> Thanks. How many HCPs do you think know that? 
> 
> Is there a formal recommendation to warm the hands/limb if cool to get an accurate reading?
> 
> What is the average error if not warmed and is that, in some patients, big enough to make the wrong decision in management?
> 
> Rob 
>> On May 15, 2018, at 6:39 PM, Behnke, Lyn <lbehnke at UMFLINT.EDU> wrote:
>> 
>> Yes, Dr. Bell, the temperature of the limb affects the pulse oximeter reading.  Cold hands, lower O2 saturation.  That has been true in my practice, however, there is also literature to support warming up the hands before using the oximeter.  Other solutions:  Ear clips (expensice) and adhesive trips that go on the forehead held by headbands.
>> 
>> With warmest regards,
>> 
>> Dr. Lyn Behnke, DNP, FNPBC, CAFCI, FAAIM, CHFN
>> Assistant Professor of Nursing
>> School of Nursing
>> University of Michigan - Flint
>> 2180 William S. White Building
>> 303 E. Kearsley Street
>> Flint, Michigan 48502-1950
>> 
>> Office phone (810) 762-3451
>> Fax (810) 766-1950
>> 
>> lbehnke at umflint.edu
>> 
>> 
>> 
>> 
>> 
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