Final answer:
The presence of an acoustic reflex at a high sensation level suggests decreased auditory sensitivity and may indicate hearing loss or auditory system dysfunction.
Step-by-step explanation:
When an acoustic reflex is present at a high sensation level, it implies that the reflexive response of the middle ear muscles to an acoustic stimulus occurs at a higher-than-normal threshold, indicating decreased sensitivity to sound. This reflex helps to protect the inner ear from damage by loud sounds and is typically present at lower sound levels in a healthy ear. A high threshold suggests some degree of hearing loss or dysfunction within the auditory system, which may need to be further evaluated by an audiologist.