Which measure is primarily included in an endoscopic examination for a child with hoarseness?

In the context of an endoscopic examination for a child experiencing hoarseness, the primary focus is on laryngeal visualization. This process involves using an endoscope to directly observe the structures and function of the larynx, allowing clinicians to assess for any abnormalities, such as lesions, swelling, or vocal fold movement issues that may be contributing to the child's hoarseness.

Laryngeal visualization is critical because it provides real-time insight into the morphology and functioning of the vocal folds during phonation. This direct observation helps identify potential organic causes of hoarseness, such as nodules, polyps, or inflammation.

While amplitude perturbation and laryngeal airway resistance are valuable measures in voice assessment, and perceptual judgment provides subjective qualitative information, they do not replace the necessity for direct visual examination of the larynx in diagnosing the underlying causes of voice disorders in a child with hoarseness. Thus, laryngeal visualization stands out as the primary measure in an endoscopic examination.