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What's That Sound? Hearing Aid Mysteries Explained

View Course Details Please note: exam questions are subject to change.


1.  A patient may complain that sounds from a compression hearing instrument are uneven, choppy or cutting in and out if the _____ has been reduced too low in an effort to ensure output doesn't exceed UCL.
  1. Low input gain
  2. Noise reduction
  3. MPO
  4. Battery voltage setting
2.  It is important to update the software when changing the receiver power in the hearing instrument. Failure to do so could result in:
  1. Output from the hearing instrument that does not match what is on the gain screen
  2. Patient complaints
  3. A broken receiver
  4. A and B
3.  If the hearing aid is running many complex processes at once it could become overloaded just like a smartphone or a personal computer. Should this occur:
  1. The hearing aid may sound as is it shut down and may require a reboot.
  2. Feedback will emit from the hearing aid and the wax guard should be changed.
  3. It is due to the wrong receiver power level and the next highest receiver power level.
  4. The hearing needs to receive additional power from the app and should be connected to a smartphone immediately.
4.  Sensors found in particular environments can interact with components in the hearing instruments and can cause artifacts that can be perceived by the listeners. Example are:
  1. Airport security systems and LED lights
  2. LED lights and ultrasonic airbag sensors
  3. LED lights and traffic signals
  4. None of the above
5.  Phone programs that are triggered by sensing the magnet in the phone could also be inadvertently triggered by
  1. Store security systems
  2. LED lights
  3. Ultrasonic airbag sensors
  4. Magnetization of wire framed glasses
6.  In some cases those with wire framed glasses have noticed that ear to ear connectivity is
  1. Decreased due to more mass around the head for the wireless signal to go around
  2. Decrease due to the metal frame of the glasses interfering with wireless transmission
  3. Improved due to amplification of the wireless signal through the glasses
  4. None of the above
7.  When going through airport security hearing aid wearers
  1. Must remove their hearing aids
  2. May continue to wear their hearing aids
  3. Must remove the batteries from their hearing aids
  4. May continue to use their hearing aids so long as they are worn on the opposite ear
8.  Close proximity to cell phones can cause which of the following occurrences in hearing aids?
  1. Pulsing or buzzing noise
  2. Hearing other people's phone conversations
  3. Hearing a radio station
  4. None of the above
9.  Which of the following radio frequency transmissions is closest to the frequency range of human hearing?
  1. FM
  2. NFMI
  3. 2.4 GHz
  4. AM
10.  What will happen if two radio transmissions in the 2.4GHz band interfere with each other?
  1. Both will fail, every time
  2. There may be blockage of the signal
  3. One will take over the other
  4. None of the above

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