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Oxygen Saturation and the Pulse Oximeter: Nursing Skill Vital Signs

Video Review

Video Transcript

hey guys this is Tami done it with nurse
minder and today we are talking about
oxygen saturation in particular we’re
going to talk about how to take the
oxygen saturation reading we’re going to
talk about the waveforms actually give
us information about and a little bit
about prepping your patient and clinical
considerations and of course we’re gonna
do all of that right after this welcome
back my name is Tammy and this is nurse
minder and on this channel we do
everything nursing so if you’re new here
consider subscribing below so that you
get the next video when it’s released so
talking about oxygen saturation what we
typically do is just kind of put this on
a person’s finger take a reading write
some numbers and I don’t know if we
really give too much thought about what
exactly we are measuring so we’re going
to talk about that today
so our oxygen saturation our spo2 as we
call it it’s a measurement of
oxygenation and oxygenation is a
reflection of our perfusion and
ventilation so our abilities to breathe
in and get rid of oxygen and the
abilities for our lung cells to transfer
oxygen and carbon dioxide from the blood
system into the lungs and from the lungs
into the blood system when using a pulse
oximetry to measure oxygen saturation
we’re really looking at the hemoglobin
that is in the red blood cells and how
much of that is bound to oxygen so each
red blood cell has a certain capability
to carry a volume of oxygen and that’s
what we’re measuring and it’s measured
in a percentage so in a normal healthy
adult the normal values are greater than
92% now depending on if you have some
other pathologies such as COPD we may
actually want it to be lower
88% or higher because of what’s
happening within the lungs
in terms of preparing your patient for
an o2 Sat reading education around how
it is non-invasive so there is no pain
at simply a light pressure on your
finger is important and then it will
simply need to sit there for about 30
seconds while it adjusts and it reads
and you get a baseline now in preparing
your patient and selecting the place
that you will do your monitoring we
often will use the hand and the ring
finger to complete that process now we
want to make sure that the digits are
free from nail polish and that they are
warm and they are pink if they are cold
and blue you’re gonna get a really
little reading and you want to see if
there’s a digit that actually is pink so
either hand is fine in some cases you
might also need to use the toes
other locations for doing o2 monitoring
could be the ear if you’ve got the ear
ones and the feet in infants we tend to
wrap the sensor around their foot pad
and when it comes to waveforms there is
a characteristic pattern that we would
expect to see in a healthy individual
and that’s this first one here in the
normal waveform for a pulse oximeter and
you’ll have seen it on my reading as
well that we have this sharp rise up and
then kind of almost a hill on the way
down this is called the dicrotic notch
if you see that present it is not always
there but we have this rise and fall to
baseline rise and fall to baseline and
this will be considered normal and with
this we consider a normal stroke volume
and peripheral vascular resistance as
well when we have a weak wave form you
may only see a slight rise and fall and
a slight rise and a slight fall this may
be due to hypovolemia that they have a
decreased volume in the best future
which is causing a decreased stroke
volume and there may be increased
peripheral vascular resistance such as
with heart failure when we have a large
bounding waveform you’ll see these
really tall structures show up and
they’re consistent across that’s not a
problem if they’re taller and a little
bit more pronounced than usual so
somebody has a fever
you know the vasculature has dilated and
we’re really pumping that fluid through
the heart because we’re circulating
oxygen we may have an increased stroke
volume and with that dilation we have a
decrease in peripheral vascular
resistance other conditions that may be
consistent with this pattern would be a
orbit regurgitation anemia and an
increasing in inter cerebral pressure
there are some limitations to the use of
a pulse oximetry and that would be
nail-polish on the fingers dark
nail-polish limits the ability for that
red light to shine through the second
would be if the patient is already cold
and clammy there might be perfusion
problems we’re going to get an
inaccurate reading potentially and then
the third is when they’re shivering or
there’s artifact that can influence the
clinically there may be some limitations
as well
patients who are anemic have fewer red
blood cells that doesn’t mean that their
tema globin concentration won’t actually
be greater than 92 percent because the
hemoglobin that is bound to that red
blood cell may in fact be saturated to
an efficient level but our patients may
still be symptomatic because they have
fewer of them which means there’s less
oxygen available to the cells when they
arrive so if you do have a symptomatic
patient who is anemic and they have a
normal Sao 2 then you may still need to
use some oxygen trauma patients fall
into the same category in the sense that
if they are bleeding they are losing
blood but they may have a normal Sao 2
reading and still require oxygen if they
are in distress carbon dioxide is the
third clinical consideration I want to
talk about at this point so carbon
dioxide has a greater affinity to bind
to hemoglobin than oxygen and in the
presence of carbon dioxide it will still
appear as if our patients are sadden
with oxygen greater than 92% which can
be misleading if a patient is at all
suspected to have carbon dioxide
poisoning you’ll want to apply oxygen to
improve their oxygenation and one of the
tests they may order in order to
definitively identify their oxygen
status would be an arterial blood gas
one of the questions I get asked is how
long will it take before I notice a
change in my patient status if I give
oxygen and I’m monitoring their Sao –
well here’s something I like to have my
students do is to put on a SAP robe and
hold their breath in fact let me do that
let me grab my second see that change
currently my oxygen saturation is at 97%
I’m gonna hold my breath for as long as
I can
okay that’s getting pretty long and you
see my oxygen hasn’t changed at all huh
so it can take a couple minutes before
you see a change in your patient status
when you’re increasing or decreasing
oxygen saturations so do be sure to
check back in on them
that’s our less of an oxygen saturation
so be sure to comment below and let me
know how this has helped you and if
you’ve got some more information of
course share it because you know that we
are stronger together and share this
with your friends let them know that
you’ve watched a really cool video like
it thumbs up and until next time make it
a great day

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Zacurate Pro Series 500DL Fingertip Pulse Oximeter Blood Oxygen Saturation Monitor with Silicon Cover, Batteries and Lanyard (Royal Black)

  • ACCURATE AND RELIABLE – Accurately determine your SpO2 (blood oxygen saturation levels), pulse rate and pulse strength in 10 seconds and display it conveniently on a large digital LED display.
  • FULL SPO2 VALUE – The ONLY LED pulse oximeter that can read and display up to 100% for SpO2.
  • SPORT/HEALTH ENTHUSIASTS – For sports enthusiasts like mountain climbers, skiers, bikers or anyone interested in measuring their SpO2 and pulse rate. SpO2 and Pulse Rate now faces instead of away from the user for an easy read.
  • ACCOMODATES WIDE RANGE OF FINGER SIZES – Finger chamber with SMART Spring System. Works for ages 12 and above.
  • LOADED WITH ACCESSORIES – Include 2X AAA BATTERIES that will allow the pulse oximeter to be used right out of the box, a SILICON COVER to protect your pulse oximeter from dirt and physical damage and a LANYARD for convenience. Comes with 12 months WARRANTY and USA based technical phone support.

The best pulse oximeter for nurses comes in three different categories, the most common of which is the disposable variety. Many doctors prefer this model as they find it more convenient and affordable than other disposable models. Some doctors even use it with their prescription pads to monitor the oxygen levels in their patients. They can take their prescription pad and pulse oximeter anywhere they go.

It’s also important to point out that the pulse oximeter for nurses is also a medical device and therefore it will require some form of maintenance. There are several ways to maintain your unit including cleaning it yourself or having it serviced by a professional. This is also a good opportunity to learn how to properly care for and use your unit. These tips will help you make the most of your disposable unit.

The first way to clean your pulse oximeter is to make sure that it is cleaned thoroughly after each use. You can do this by taking a mild solution of one cup of bleach mixed with one cup of warm water and then rinsing out the chamber of your oximeter with this solution. Be sure to allow the solution to soak into the material and not just rinse it out. It may also be helpful to rub in the bleach solution to the inside of the chamber to loosen the dirt that has built up over time.

To clean the device’s surface, you should use an iodine solution. You should use only the smallest amount and then rinse off the solution so as to avoid damage to the unit. There are also different types of iodized solutions, such as potassium, but if you are allergic to them then do not use them on your pulse oximeter for nurses.

If you find that the solution is too much for your unit, then you can use a soft cloth to clean off the solution. This method will work best if your unit is not in its dry form, but you can still do it in the case of a dry one. It is important that you rinse the surface of your pulse oximeter for nurses thoroughly after using the solution in order to remove any remaining dirt. If the solution is too powerful for the cleaning cloth, it may cause damage to the unit.

When looking for the best pulse oximeter for nurses, make sure that you find one that meets your needs and preferences. These three tips will help you use it longer and maintain it properly.

Last update on 2020-10-26 / Disclaimer: as an Amazon Associate a Simply Philosophy team earns from qualifying purchases.

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Last update on 2020-10-26 / Disclaimer: as an Amazon Associate a Simply Philosophy team earns from qualifying purchases.