Which measure is primarily included in an endoscopic examination of the larynx?

The primary focus of an endoscopic examination of the larynx is laryngeal visualization. This procedure allows healthcare professionals to directly view the structures of the larynx, including the vocal cords, to assess their appearance, movement, and any abnormalities that may be present. During this examination, the use of an endoscope— a flexible or rigid tube equipped with a camera— provides a clear visual representation of the laryngeal anatomy, which is essential for diagnosing various conditions affecting voice quality, airway obstruction, or other laryngeal issues.

While other measures, such as amplitude perturbation, laryngeal airway resistance, and perceptual judgment, may be important in the broader assessment of voice and laryngeal function, they do not constitute the primary focus of the endoscopic procedure itself. Instead, these aspects might be evaluated through complementary assessments or tests but are not directly part of the visualization process that an endoscopy entails.