An elderly man drove from his home to a nearby convenience store and was unable to remember how to get home.He was unable to tell a police officer his address and demonstrated labile mood.The officer took the man and met the man's wife,who related that her husband often wanders around the neighborhood,sometimes taking tools from people's garages.She reluctantly agreed that he should go to the emergency department for evaluation.He was diagnosed with Alzheimer's disease.On the basis of the patient's history,the nurse can make the assessment that the patient's Alzheimer's disease has progressed to:

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In stage 2,deterioration is evident.Memory loss may include the inability to remember addresses or the date.Mood is labile.Activities such as driving may become hazardous,as seen here,and increasing difficulty in performing ordinary tasks leads to frustration.Hygiene may begin to deteriorate.Stage 1 is the mildest stage;amnestic changes are evident but functioning is generally intact.Stage 3 finds the individual unable to identify familiar objects or people,and needing direction for the simplest of tasks.In stage 4,the ability to talk and walk are eventually lost and stupor evolves.

An Elderly Man Drove from His Home to a Nearby