Which test can be performed first without impacting the certification process?

The whisper test can be performed first without impacting the certification process because it is a simple screening tool that primarily assesses the hearing ability of the individual. This test is less formal and does not require specialized equipment or setup, making it a practical choice to begin with during the medical examination.

In contrast, the audiology test is more comprehensive and requires resources that may take additional time, which could potentially delay the certification process if scheduled first. Given that the whisper test is straightforward and effective for initial screening, it allows medical examiners to identify any clear issues needing further investigation without complicating or prolonging the certification.

The other options involve scenarios that could disrupt the examination flow or potentially introduce unnecessary complexity, making the whisper test uniquely advantageous as a first step.