Abstract Pulse oximetry is probably the most commonly employed monitoring tool in the emergency department. It is a simple, noninvasive and affordable medical tool that enables monitoring of oxygenation continuously. Like any other medical instrument, it has its own pitfalls and therefore, knowledge of these as well as the correct method of using this device is important for accurate interpretation of results. In this review, we have briefly covered the practical aspects of use of this important monitoring tool.
Keywords: Pulse oximeter; Oxyhemoglobin dissociation curve; Oxygenation; Saturation probe.