pulse oximeter

Tom Benzoni benzonit at GMAIL.COM
Wed May 16 18:50:01 UTC 2018


We routinely warm the limb or switch to the forehead probe.
I've never seen a formal recommendation; it's just filed under "common
knowledge."
It sure can cause a management error; let me use a tangential example.
When performing moderate sedation for, say, a dislocated shoulder, the B/P
cuff and pulse ox are on the same (unaffected) limb.
When the B/P inflates, flow to the arm and pulse ox is cut off.
This causes the low saturation alarm to ring and registers a complication
in the patient's record.
So a decision has to be made: error or actual?
tom

On Wed, May 16, 2018 at 1:38 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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