Overnight Oximetry

Overnight Oximetry is a diagnostic test which can help give a better understanding of the underlying problem causing an individual’s sleep disorder.
This test will typically be done at home while sleeping. The Oximetry unit will be taken home overnight for the test and returned to the Respiratory Care Department the following morning. It involves the use of a probe which is worn on the finger or earlobe to continuously measure oxygen levels and heart rate. A red light and sensor that detects changes in the color of blood that may suggest desaturations (or loss of oxygen) are occurring.

It may identify individuals at risk for nocturnal breathing disorders such as sleep apnea, and may be used to identify those who need additional evaluation such as with a polysomnogram.