Final answer:
An infrared thermometer is used to take a temperature from the ear, utilizing technology to measure emitted infrared energy for rapid and accurate readings. The correct option is 3).
Step-by-step explanation:
Correct Thermometer for Ear Temperature Measurement
The thermometer that is used to take a temperature from the ear is the infrared thermometer. This type of thermometer, sometimes referred to as a tympanic thermometer, measures the amount of infrared energy emitted by the eardrum.
This technology is similar to how the temperature of stars and planets is measured and was developed by Diatek Corporation and NASA.
Unlike other traditional methods, such as mercury or glass thermometers, the infrared ear thermometer provides a quick and accurate measure of body temperature without contacting mucous membranes, significantly reducing the risk of cross-infection.
By gently placing the device in the ear canal, the infrared ear thermometer offers a convenient and more accurate alternative to older methods like the alcohol-based thermometers used under the tongue or in the armpit.
It is a significant advancement in the field of medical thermometry, suitable for rapid temperature assessment in various patients, including newborns, critically ill individuals, or those who are incapacitated. Option 3) is the correct one.