A nurse is observing an assistive personnel (AP) take a client's tympanic temperature. Which of the following actions should the nurse identify as an indication that the AP understands how to perform the procedure?

The correct answer is: c. The AP pulls the pinna up and back. Choice A reason: The AP inserting the probe with a straight, forward motion is not the correct technique for tympanic temperature measurement. The ear canal does not run straight forward into the head; instead, it curves slightly. Inserting the probe straight forward could potentially damage the ear canal or eardrum and would not provide an accurate temperature reading. Choice B reason: Pointing the probe posteriorly is also incorrect. The tympanic membrane is located at the end of the ear canal, and the probe should be directed towards it. However, the probe should be angled slightly downward and toward the jawline, not straight back, to align with the ear canal and ensure an accurate reading. Choice C reason: Pulling the pinna up and back is the correct method for adults and children over one year old. This action straightens the ear canal, allowing the thermometer’s sensor to get a clear path to the tympanic membrane, which is necessary for an accurate temperature reading. For infants, the correct method is to pull the earlobe straight back. Choice D reason: The AP positioning the client facing her does not directly relate to the technique of measuring tympanic temperature. While it may be necessary for the AP to see the client’s ear, it is not an indication of understanding the correct procedure for tympanic temperature measurement.