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Normal Oxygen Saturation for Children

author image Erik Andrews
Normal Oxygen Saturation for Children
High oxygen saturation in the blood is critical for healthy children. Photo Credit kids image by Marzanna Syncerz from <a href="http://www.fotolia.com">Fotolia.com</a>

Oxygen saturation is a clinical measurement that determines what percentage of a patient's red blood cells are saturated with oxygen after passing through the lungs. It is a result that reflects not only how well a patient's lungs are working but also how effectively oxygen is being delivered to all parts of the body. In a healthy child breathing room air, the oxygen saturation levels will be between 96 and 98 percent. Falling levels of oxygen saturation are concerning to physicians and may require intervention.


Oxygen saturation is an accurate measurement that reflects multiple aspects of a child's cardiovascular health. Monitoring the percent of red blood cells saturated with oxygen tells a physician how well a child is breathing, how efficiently the oxygen is being distributed to the body and how well oxygen is unloaded from red blood cells at its destination. A disruption in any of these processes will decrease the child's oxygen saturation and can necessitate therapeutic intervention.


Oxygen saturation sensing in a healthy child breathing room air will reveal a saturation rate between 96 and 98 percent. This is the normal range for a healthy adult as well. A disruption in oxygen metabolism can cause saturation levels to drop below 95 percent, at which point a physician might order intervention. Saturation levels that fall below 90 percent often require oxygen therapy, in which higher than normal amounts of oxygen are fed directly into the child's nose.


Typically, oxygen saturation is measured with a pulse oximeter. This is a painless clip that can be attached to the child on either a finger, toe or even ear lobe. It shines a red light through the sensed area and detects the extent of oxygen saturation in the blood in that region. This noninvasive measurement is often sufficient for monitoring purposes, but in more sensitive cases physicians may draw arterial blood from the child to directly measure oxygen levels.


Constant monitoring of oxygen saturation is commonplace during hospital stays and at home for children with chronic pulmonary diseases, such as cystic fibrosis. Since measurement is simple, painless and cost-effective, it is a very efficient method for catching a change in oxygen delivery before severe consequences occur. Home-use pulse oximeters are widely available for home monitoring of oxygen saturation levels both at rest and during exercise.


In a hospital, falling oxygen levels are detected immediately and corrected in extreme situations with oxygen therapy. If you are monitoring your at-risk child at home, however, and you detect a drop in oxygen levels, consult your physician immediately. Efficient correction of low oxygen levels can help prevent long-term consequences and allow your child to lead a healthier life.

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