Stage 2. Symptoms develop into secondary motor types and eventually affect both sides of the body. This stage evolves months or years after the first stage starts.
Stage 3. Symptoms compromise the daily activities of a person although he or she can still function independently when doing basic tasks like eating and bathing. Movement becomes considerably slow and a person’s balance becomes compromised. At this stage, the symptoms are so marked that there is no doubt about the diagnosis of PD.
Stage 4. The patient may still manage certain activities like walking unassisted or with tools like walkers. However, the symptoms become so debilitating that the patient needs assistance with daily living.
Stage 5. The disease has become so advanced that the patient is usually confined to a bed or a wheelchair. This stage requires around-the-clock assistance and monitoring since the patient has a high risk of getting into an accident. This is especially needed if the patient develops hallucinations or dementia.
About 50% to 80% of those with Parkinson’s eventually experience dementia as their disease progresses.
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