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Pulse Oximetry

Pulse oximetry is a non-invasive procedure done in the office to measure the amount of oxygen in the blood by using specialized red and infrared light-emitting diodes. Determination of the oxygen level is a critical component in assessing asthma control.

The Procedure

The diodes are used in opposite ends of a small plastic device that is attached to a finger, ear lobe or toe. The devices calculates the light’s absorption rates, which are then computed to give an oxygen saturation level. This is a highly accurate test that can be used for all ages.

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