What is the correct way to take a patient's temperature using a tympanic thermometer?

Using a tympanic thermometer is an effective method for measuring a patient's temperature through the ear canal, which is an area that reflects core body temperature. This method is preferred because it is quick, typically providing a reading in seconds, and is less invasive than other methods like oral or rectal temperature measurements.

When using a tympanic thermometer, it is important to gently pull the ear back to straighten the ear canal, which allows for an accurate reading. The thermometer should be inserted into the ear canal for the recommended time as specified by the manufacturer's instructions, allowing it to capture the infrared heat emitted from the eardrum and surrounding tissue. This technique provides a reliable temperature reading and is particularly useful in settings with children and those who may have difficulty holding a traditional thermometer.

The other methods mentioned in the choices do not accurately represent the proper use of a tympanic thermometer and are associated with other types of thermometers or techniques. For example, taking a temperature orally or axillary (armpit) as described in the other choices involves different equipment and procedures, thus highlighting why the second choice stands out as the correct usage for a tympanic thermometer.