What impaired functions are expected in a client with a frontal lobe injury?

Injuries to the frontal lobe can lead to a variety of cognitive and behavioral impairments, and one of the key functions affected is language and speech production. The frontal lobe houses Broca's area, which is primarily responsible for the production of speech. Therefore, an individual with a frontal lobe injury may experience difficulty in forming coherent sentences or expressing thoughts verbally, which is categorized as impaired speech.

The other options, while they denote possible issues in brain function, are not directly linked to frontal lobe injuries. Decreased sensation to touch is typically associated with injuries to the parietal lobe or issues with peripheral nerve functions. Impaired vision is primarily related to damage in the occipital lobe, which processes visual information. Decreased hearing pertains to the temporal lobe, where auditory processing occurs. Therefore, the impact on speech due to injuries in the frontal lobe makes it the most appropriate choice regarding expected impairments in such cases.