What must be performed alongside a case history before audiometric testing to check for outer ear issues?

Before audiometric testing takes place, it is essential to conduct an otoscopic examination to assess the outer ear for any potential issues. The otoscopic examination involves using a specialized tool, known as an otoscope, to visually inspect the ear canal and eardrum for blockages, infections, or structural anomalies. Identifying these conditions can significantly influence the interpretation of the audiometric results. For instance, cerumen impaction (earwax buildup) can obstruct sound transmission and lead to misleading results if not addressed beforehand.

The case history provides valuable information regarding the patient's audiological health, but the otoscopic examination is critical for ensuring that the outer ear is clear and healthy. Performing it in conjunction with the case history allows for a more comprehensive understanding of any existing conditions that could affect hearing and the overall audiometric assessment.