What is the main function of a pulse oximeter in a surgical setting?

The main function of a pulse oximeter in a surgical setting is to assess oxygen saturation in the blood. This device is critical during surgeries because it provides real-time data regarding a patient's oxygen levels, which is vital for ensuring adequate oxygen delivery to tissues and organs throughout the procedure.

Maintaining appropriate oxygen saturation is essential to avoid complications such as hypoxemia, which can affect patient recovery and overall outcomes. The pulse oximeter works by using light absorption through the skin to determine the percentage of hemoglobin that is saturated with oxygen, typically expressed as a percentage.

This capability is particularly important in surgical settings where anesthesia may impair normal respiratory function, making constant monitoring imperative to address any potential respiratory issues promptly.