Pulse Oximeter readings is really important if you want to identify your health issues related to Oxygen level.
In this blog we will learn how to get accurate Pulse Oximeter readings, how to read Pulse Oximeter, Pulse Oximeter readings chart, normal readings and more about pulse Oximeter.
What is pulse oximeter ?
A pulse oximeter is a small, lightweight clip-like device that attaches to a body part and shows real time pulse rate and oxygen level in your blood/ body. checkout this complete oximetry definition on Wikipedia.
What does a pulse oximeter measure?
It is painless test to find out oxygen level in your blood. It analyses and detects the oxygen being carried to the extremities furthest from the heart.
That’s why Oximeter can helps to detect COVID-19
Which finger is best for pulse oximeter?
Used on the index finger for finger thicknesses. between 0.8. and 2.5 centimeters thick measured from the top of the finger at the middle of the nail to the pad of the finger.
So, if you are right-handed, use the right middle finger. If you are left-handed, use the left middle finger.
How to read Pulse Oximeter?
This is the example of “pulse oximeter” this is how it looks.
If you take a closer look on display then you must have find different functions of it. like oxygen level, pulse rate etc.
That is why their are multiple Pulse Oximeter uses.
What are the 2 readings on a pulse oximeter?
In above image, you will see three icons on the display of the oximeter, actually it’s two. Don’t get confused with “%spo2” term, it is nothing but pulse reading graph.
1)Spo2 Oxygen Saturation (level)
it shows how much oxygen is available in your blood. In science word, fraction of oxygen–saturatedhemoglobin relative to total hemoglobin (unsaturated + saturated) in the blood.
It shows oxygen saturation level means oxygen level in your blood. If your oxygen level is low then you might face different issues. When oxygen saturation is measured using a pulse oximeter, it is referred to as Sp02.
Keep in mind your oxygen saturation level must be above 96% if it is low then you need to take care of yourself.
Table for normal oxygen saturation by age
What is low oxygen saturation?
If your oxygen saturation is below 94% then it is considered Low oxygen saturation level and if it goes below 92 percent then that person is seriously ill and may need supplementary oxygen or to be monitored in the hospital.
But sometime your oxygen level goes down if you have below health issues.
Now, oximeter reading can be different with different level of ages, considering no health issues and other factors. If you don’t have any serious health issue then you can follow below information for normal oxygen saturation by age.
(considering you don’t have any serious health issue)
Normal pulse oximeter readings usually range from 95 to 100 percent. So, if you are under 93 % then it is considered low. If it goes lower than 93% then you must follow doctor’s prescription.
What is normal oxygen saturation levels in Kids ?
oxygen level can be different we are not including toddlers or new born babies but if you are taking about kids then normal blood oxygen saturation is between 97-99% for most kids.
What is normal oxygen saturation levels in adults?
If you are young and don’t have any health issues then oxygen saturation level should be 97–100% in healthy lives. If it goes below 94% then you should be taking care of yourself.
What is normal oxygen saturation levels in elderly?
Older adults have different health issues and low amount of oxygen saturation levels than younger adults. So, sometimes you may find out that saturation level is 95% who is older than 70 years of age or may have an 93% oxygen saturation level who is 75 years old which is an acceptable level.
2) Pulse Rate
It shows how your heart is pumping and is it healthy or not, in other words your heartbeats. If heartbeats are high then something is wrong (in normal situation).
How to get accurate pulse oximeter readings?
To get accurate pulse rate your body should be calm, and you should be in a normal situation, also, warmer hands work better than cold hands. Test it multiple times keeping short time gap. Pulse rate can be different for different age groups. So, to get accurate pulse rate you must be aware about normal pulse rate for each age group.
Pulse Oximeter readings chart
Now, you have above chart and you know heartbeats for each age group. Sometimes your pulse reading results can be different with different situations. If you are running or doing your exercise then pulse reading would be high.
Types of Pulse oximeter?
Now there are different pulse oximeters available in market. Most of them are costly and used in hospitals.
1) Masimo pulse oximeter
This oximeter is normally used in hospitals. So, if you are looking for the best oximeter and ready to spend good amount then you can keep this oximeter in your bucket list.
Prices start from 300 dollars.
Here is the list of masimo pulse oximeter.
2) Nonin pulse oximeter –
Nonin Finger Pulse Oximeter is best option for family. It is easy to use and available with low cost. It shows oxygen level, pulse rate and many other things.
3) Choicemmed pulse oximeter
it is also best option for family use, it is Fingertip Pulse Oximeter made by Chiocemmed, has high accuracy for measurement of Oxygen Level and Pulse Summary. It comes with algorithams facilty, runs on battery, portable.
Handy device if you have any patient in your home suffering oxygenation problem then best option for you. It comes with One Year Warranty replacement.
Poor peripheral perfusion may cause the oximeter to fail to register a signal. During cardiac arrest peripheral pulses may be so weak that the device cannot detect
Because pulse oximeters use two-wavelength spectrophotometry, readings are inaccurate in the presence of abnormal hemoglobin levels. Here is the complete guide for limitations.