JAAA CEU Program

The questions on this page refer to Patterson et al, “Electrode Montage for Bilateral Cervical Vestibular Evoked Myogenic Potential Testing,” pages 165–171.

Learner Outcomes

Readers of this article should be able to:

• Summarize the implications of completing bilateral cervical evoked myogenic potential (cVEMP) testing.

• Describe the modified electrode montage for use when completing bilateral stimulation during cVEMPs.

CEU Questions

1. Bilateral cervical evoked myogenic potential (cVEMP) testing may be used

   • to overcome middle-ear dysfunction.

   • when using a high force level bone-conduction stimulation (e.g., mini-shaker).

   • to overcome sensorineural hearing loss.

2. Previous literature has shown contralateral-crossed cVEMP responses that are

   • always in-phase with the ipsilateral response.

   • always out-of-phase with the ipsilateral response.

   • Either in-phase or out-of-phase with the ipsilateral responses.

3. The contralateral-crossed cVEMP response has been theorized to be from all the following except

   • Saccule.

   • Utricle.

   • Electrode contamination.

4. Fp was used as a reference location because it

   • was chosen at random.

   • was most comfortable for the participants.

   • was the only reference location that was not electrically active.

5. The total frequency of occurrence of the contralateralcrossed cVEMP responses when using the sternum reference location was

   • 81%.

   • 53.3%.

   • 16%.

6. Corrected cVEMP amplitudes were largest when stimulating with both air conduction and bone conduction using the following electrode montage:

   • Fp reference.

   • Sternum reference.

   • Hand reference.

7. The total frequency of occurrence of the contralateralcrossed cVEMP response when using Fp as a reference location was

   • 1%.

   • 5.1%.

   • 3.3%.

8. When the cVEMP amplitude using the monaural sternum reference montage was added to the contralateral-crossed response cVEMP amplitude and compared to the binaural sternum reference cVEMP amplitude,

   • there was no significant difference between the two amplitudes.

   • the binaural sternum reference demonstrated larger cVEMP amplitudes.

   • the monaural sternum reference demonstrated larger cVEMP amplitudes.

9. The presence of the in-phase contralateral-crossed cVEMP response in this study suggests that

   • the binaural cVEMP amplitudes are artificially reduced.

   • the binaural cVEMP amplitudes are artificially enhanced.

   • there is no effect on the binaural cVEMP amplitudes.

10. Findings from the current study support that the contralateral-crossed cVEMP response is likely due to

    • Utricle.

    • Saccule.

    • Electrode contamination.

Publikationsverlauf

Artikel online veröffentlicht:
03. Januar 2025