What is the correct method to take an oral temperature?

Taking an oral temperature accurately involves placing the thermometer under the tongue, which is the method described in the correct answer. This location is chosen because it provides a reliable measurement of the body’s core temperature when the individual is at rest and has not recently consumed hot or cold substances, which could affect the reading.

When utilizing an oral thermometer, it is important to instruct the patient to close their mouth around the thermometer, allowing it to remain in place until it beeps, indicating that the reading is complete. This method is commonly used in clinical settings because it is non-invasive, quick, and provides consistent results.

The other methods listed are not suitable for taking an oral temperature; placing the thermometer on the cheek, inserting it in the armpit, or using a bite guard are either ineffective or intended for different types of temperature measurements (like axillary or tympanic temperatures). Each of these alternatives does not utilize the appropriate location for oral temperature checks, which is essential for ensuring accuracy.