Symptoms of late-stage Alzheimer's disease include the loss of control of movement and the loss of the ability to communicate coherently, according to the Alzheimer's Association. Changes in personality also often become evident during the final stage of the disease.
A person suffering from late-stage Alzheimer's may still be able to utter certain words or phrases but often finds it increasingly difficult to communicate about pain, says the Alzheimer's Association. This inability to communicate can create additional stress for caregivers, who often must provide full-time patient care during the late stages of the disease. Patients often require help with personal hygiene and other daily activities. Because late-stage Alzheimer's patients require such intense care, the Alzheimer's Association encourages caregivers and family members to contact the organization's local chapter for resources and assistance.
Sufferers of late-stage Alzheimer's also tend to lose awareness of their surroundings, explains the Alzheimer's Association. Moreover, they suffer from increased memory loss and often do not remember even their most recent experiences. Physical abilities deteriorate as well, and in many cases, patients become bedridden as they lose the ability to walk or sit. In some cases, they even lose the ability to swallow. Physical deterioration is also evident in patients' increased vulnerability to infections. Pneumonia poses a particular threat to late-stage Alzheimer's patients.