Final answer:
The stage of Alzheimer's Disease characterized by increased suspicion and forgetting of normal routines is Stage 3, or the moderate stage of the disease, where memory loss and confusion become more disruptive.
Step-by-step explanation:
The stage of Alzheimer's Disease when a client becomes suspicious and forgets normal routines is typically associated with the moderate stage of the disease. This corresponds to Stage 3 in the common categorization, where symptoms such as disruptive memory loss, confusion about time or place, and personality changes are more pronounced. The deterioration includes more significant changes in cognition and function, which now begin to impact daily life considerably. As Alzheimer's progresses, it can also lead to problems with smelling certain scents, indicating a decline in sensory processing abilities.
Alzheimer's disease is a continual process, and symptoms get worse over time. Known for amyloid plaques and neurofibrillary tangles, Alzheimer's causes severe neuron loss in places like the hippocampus. This brain damage can be seen in comparisons between a normal brain and one affected by Alzheimer's, highlighting the disease's impact on brain volume and structure.