Average Oxygen Level

What are average readings? A normal oxygen level is usually 95% or more. Some people with chronic lung disease or sleep apnea may have normal levels of around 90%. The “SpO2” reading on a pulse oximeter shows the percentage of oxygen in a person’s blood.

Pulse oximetry could potentially be a more efficient screening tool, supplementing or perhaps replacing respiratory rate as the ‘pulmonary vital sign’.

Modern pulse oximeters provide accurate, noninvasive measurements of arterial oxygen saturation. Such devices are easy to use, measure normal oxygen saturations accurately in most patients, and detect desaturations reliably in a variety of conditions.

Numerous studies document the usefulness of pulse oximetry, while recent technical advances make low-cost routine screening possible.

Average oxygen level
Average oxygen level

Average oxygen level in human body

Your blood oxygen level is a measure of how much oxygen your red blood cells are carrying. Your body closely regulates your blood oxygen level. Maintaining the precise balance of oxygen-saturated blood is vital to your health.

Most children and adults do not need to monitor their blood oxygen level. In fact, many doctors won’t check you unless you show signs of a problem, like shortness of breath or chest pain.

However, people with chronic health conditions may need to monitor their blood oxygen level. This includes asthma, heart disease, and chronic obstructive pulmonary disease.

In these cases, monitoring your blood oxygen level can help determine if treatments are working or need to be adjusted.

What is a good blood oxygen level?

The body closely monitors blood oxygen levels to keep them within a specific range so that there is enough oxygen for each cell’s needs.

A person’s blood oxygen level is an indicator of how well the body distributes oxygen from the lungs to the cells, and can be important to a person’s health.

Normal oxygen level for adults

For most people, a normal pulse oximeter reading for their oxygen saturation level is between 95% and 100%. Your health care provider will let you know what levels are acceptable. Your oxygen saturation levels may also be lower if you live in an area with high elevation.

Your blood oxygen level is measured as a percentage: 95 to 100 percent is considered normal.

If oxygen levels are below 90 percent, that’s cause for concern. If you see readings at or below this level, you should contact your health care provider immediately.

Average oxygen level by age

Older adults typically have lower oxygen saturation levels than younger adults. For example, a person over the age of 70 may have an oxygen saturation level of around 95%, which is an acceptable level.

It is important to note that the level of oxygen saturation varies considerably depending on a person’s state of health.

Therefore, it is important to understand both baseline readings and the underlying physiology associated with certain conditions in order to interpret oxygen saturation levels and changes in these levels.

Oxygen saturation levels may drop slightly when a person is talking.

Oxygen saturation can remain normal for people with anemia. However, this may not indicate adequate oxygenation because there is less hemoglobin to carry an adequate supply of oxygen for people who are anemic.

Inadequate oxygen supply may be more prominent during activity in people with anemia.

Falsely low oxygen saturation levels may be associated with hypothermia, decreased peripheral perfusion, and cold extremities.

In these cases, a pulse oximeter device on the earlobe or arterial blood gases will provide a more accurate oxygen saturation level.

However, arterial blood gases are usually only taken in emergency or intensive care settings.

How to check oxygen level at home?

You can buy an FDA-approved pulse oximeter at a pharmacy or online store for $20 to $50. It is recommended that chronically ill patients bring the devices to their doctor’s appointments to compare measurements.

There is a lot of variability in how these devices measure oxygen levels and these methods have not been approved by the FDA. As long as you compare the results to an FDA-approved device, they’re fine.

If you notice low oxygen levels on a fitness tracker, contact your healthcare provider for evaluation.

If your wearable device shows a normal oxygen level, but you are not feeling well, it is recommended that you be evaluated by your doctor.

More on this story

Normal oxygen saturation by age

Normal oxygen saturation by age

Human beings depend on oxygen for life. All organs require oxygen for metabolism but the brain and heart are particularly sensitive to a lack of oxygen.

SpO2 normal range by age Chart

SpO2 normal range by age Chart

This reading chart provides guidance on what oxygen level means and when and how to seek medical help.

Buy pulse oximeter online

Buy pulse oximeter online

Buying a pulse oximeter online is an important health decision you must make to improve your health and your life.