Which of the following is NOT a function of the pulse oximeter?

The function of the pulse oximeter that is not typically associated with it is measuring heart rate. While many pulse oximeters do provide an indication of heart rate as a secondary feature, it is primarily designed to monitor oxygen saturation levels in the blood. The primary function is to assess the percentage of hemoglobin that is saturated with oxygen, which is critical for evaluating the patient's respiratory status.

Additionally, pulse oximeters provide real-time data on blood oxygen levels, enabling healthcare providers to respond to changes quickly. They can also alert users to low oxygen saturation, allowing for timely intervention in cases where a patient may require supplemental oxygen or other medical assistance. These functions make the pulse oximeter an essential tool in monitoring patients' respiratory health during dental procedures and in various healthcare settings.