When should we consider using pulse oximetry?
The application of a pulse oximeter should not deter from clinical observation and appropriate intervention. The primary use of a pulse oximeter is to avoid hyperoxemia. Other uses of a pulse oximeter include monitoring the heart rate and titrating oxygen administration. Therefore, timing of the application of a pulse oximeter will vary according to the indication. Prior to 2006, it was not common practice in Canada to use pulse oximetry or blended gases during resuscitation. With the introduction of a decision process for air or supplemental oxygen it will become increasingly necessary to monitor oxygen saturation to avoid hyperoxemia and ensure appropriate use of oxygen. Providers should consider applying a pulse oximeter probe when the decision is made to provide supplemental oxygen; it may take 30 to 60 seconds to obtain a reliable signal. It should be appreciated that saturation levels of 70 to 90% are physiological in the first 10 minutes of life, and that the important role of t
