CNA Program Practice Exam

Using an oral thermometer correctly is essential for obtaining an accurate measurement of body temperature. The proper method involves placing the thermometer under the tongue, ensuring that the person closes their mouth around it during the measurement process. This positioning allows the thermometer to register the temperature effectively since the mouth is a common site for oral temperature measurement. Maintaining the mouth closed helps to create a sealed environment, resulting in more reliable readings.

When using an oral thermometer, it is also important to wait a few moments before taking the measurement to ensure that the reading stabilizes, especially if the person has consumed hot or cold beverages prior. This practice contributes to the accuracy of the temperature reading.

In contrast, placing the thermometer under the armpit or inserting it into the rectum are methods used for measuring temperature in different contexts, such as axillary or rectal temperature measurements, respectively. Holding the thermometer in hand for one minute does not provide an accurate way of measuring temperature, as the device must be placed in a specific body cavity to gauge internal body heat effectively.