NHA Certified Clinical Medical Assistant (CCMA)Clinical Patient CareMedium
A medical assistant is preparing to measure a patient's temperature using a tympanic thermometer. Which of the following actions should the medical assistant take to ensure an accurate reading?
- AUse the same probe cover for multiple readings to conserve supplies.
- BGently pull the auricle upward and backward for an adult.
- CInsert the probe into the ear canal until resistance is met.
- DWait 30 minutes after the patient has consumed hot or cold liquids.
Show answer & explanationAnswer & explanation
Correct answer: B. Gently pull the auricle upward and backward for an adult.
For an adult, pulling the auricle upward and backward straightens the ear canal, allowing the tympanic thermometer probe to align with the tympanic membrane for an accurate reading. This is a key step in proper tympanic temperature measurement.
Why the other options are wrong
- A. Using the same probe cover is unsanitary and poses an infection control risk, compromising patient safety and accuracy.
- C. Inserting until resistance can cause injury and will not guarantee proper alignment with the tympanic membrane.
- D. This waiting period is for oral temperature measurement, not tympanic, as tympanic temperature is less affected by oral intake.
Tympanic Temperature Measurement
Measuring body temperature using a tympanic thermometer inserted into the ear canal, which reflects core body temperature.
- Requires proper ear canal alignment.
- Different technique for adults vs. children.
- Probe cover must be used and discarded after each use.
Memory trick: Ear up and back, for the adult's best tympanic track!