A nurse is assisting with the admission of a client who has dementia related to a traumatic brain injury. Which of the following findings should indicate the nurse that the client's condition is worsening?

Rationale: A. A shuffling gait may indicate baseline mobility issues, Parkinsonism, or age-related motor changes. While it can be present in dementia patients, it is not a specific indicator of progression or worsening of dementia related to traumatic brain injury (TBI). B. Visual field deficits are often static neurological deficits that result from the original brain injury. They do not typically indicate worsening cognitive function or dementia progression. C. CD4 counts reflect immune status, particularly in conditions like HIV/AIDS, and are unrelated to dementia progression. Changes in CD4 counts would not indicate cognitive decline in TBI-related dementia. D. Chorea refers to involuntary, rapid, irregular movements and can indicate progressive neurological deterioration, particularly in the basal ganglia or related motor pathways. The emergence of chorea in a client with dementia from TBI suggests worsening neurodegenerative changes or involvement of additional brain regions, making it the most concerning sign of disease progression.