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Pulse Oximetry: What Does It Do for You?

Pulse Oximetry: What Does It Do for You?
Kevin Cleary

With respiratory viruses such as COVID-19 dominating the news headlines, it has never been more important to be prepared for when a respiratory virus heads your way. Our respiratory system is especially important in transporting oxygen throughout our body. One of the negative impacts of any respiratory virus is the diminishing distribution of oxygen to our cells in our bodies. One effective device we can use to monitor the saturation of oxygen in our blood system is pulse oximeters. So, what exactly are these devices and what does pulse oximetry actually do for us? We here at HPFY can give you the facts about pulse oximetry and its benefits.

Pulse Oximetry

Oxygen and Our Red Blood Cells

Our body requires oxygen, this is not debatable. This oxygen that we inhale into our lungs is then transported via our red blood cells (hemoglobin) throughout our body. It is critical that we maintain proper oxygen saturation levels in our blood so that the oxygen levels are sufficient to maintain healthy cells throughout our body. Respiratory infections can diminish this oxygen saturation level in our blood and cause problems that may require supplemental oxygen therapy or worse. Pulse oximetry can be useful in diagnosing conditions such as:

  • COPD
  • Asthma
  • Pneumonia
  • Cardiac Disease
  • Lung Cancer
  • Respiratory Infections

Being able to determine what your blood oxygen levels are can help the medical professionals prescribe supplemental oxygen therapy or other interventions in order to help our lungs pass along needed oxygen to our bodies.

 

Pulse Oximeters Are Your Friends

Believe it or not, monitoring your blood oxygen levels at home is amazingly simple and easy. A little medical device called a pulse oximeter is all you need. These easy to use, inexpensive fingertip devices can give you your blood oxygen levels in the palm of your hand (forgive the pun). There are no preparations for this type of test and it is completely noninvasive. About the only thing you need to do is to remove nail polish you may have on your fingernails. In order to test your oxygen levels in your blood, simply clip the pulse oximeter to your fingertip and let it do its magic. A normal oxygen saturation level is around 95%. When levels drop to around 92% or less, a condition known as hypoxemia occurs. This may indicate the need for supplemental oxygen therapy. A pulse oximeter works by:

  • Beaming two different wavelengths of light (visible and infrared light) into your fingertip
  • The light waves are absorbed into the blood
  • These light waves that pass through your fingertip are read by a photo detector
  • This photo detector reads the change in light

Red and Infrared Light

It is this change in the light waves that determine your blood oxygen saturation levels as well as your pulse. This type of test has no risks or side effects associated with it. These little gems are a great way to determine that the O2 in your lungs makes it into our bloodstream and circulates it throughout our body.

 

Pulse oximetry and oximeters are a crucial addition to your medicine cabinets to help us stay healthy from respiratory maladies. These are small, inexpensive meters that don’t take up a lot of space and are incredibly easy to use. Clip on and be well!!

 

Disclaimer: All content found on our website, including images, videos, infographics and text were created solely for informational purposes. Our content should never be used for the purpose of diagnosis or treatment of any medical conditions. Content shared on our websites is not meant to be used as a substitute for advice from a certified medical professional. Reliance on the information provided on our website as a basis for patient treatment is solely at your own risk. We urge all our customers to always consult a physician or a certified medical professional before trying or using a new medical product.


HPFY Kevin Cleary

Kevin Cleary

Hi there, my name is Kevin Cleary. I was born in Westchester County in 1966 on December 3. I lived there until 1973 when my family moved. I graduated from high school in 1984 and then attended college in New ...

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