Final answer:
In stage 4 Alzheimer's disease, a nurse should expect to see severe memory loss and disorientation in a client. This stage is characterized by significant cognitive deficits, where the individual's ability to recognize family, communicate effectively, and conduct daily activities is highly compromised.
Step-by-step explanation:
A nurse assessing a client who has stage 4 Alzheimer's disease should expect to find the symptom of severe memory loss and disorientation. Stage 4 is considered moderate Alzheimer's, where increasing damage to the brain results in significant deficits in cognitive functions. Patients in this stage may not recognize family members, wander and get lost, and have trouble conducting daily activities.
In severe Alzheimer's, which refers to the advanced stages beyond stage 4, there is extensive brain damage. Affected individuals are usually unable to recognize family members, have severely impaired communication skills, and are fully dependent on others for care. The hallmark symptoms of Alzheimer's disease overall include disruptive memory loss, confusion about time or place, inability to plan or execute tasks, and personality changes, all of which are magnified in the later stages.