Sudden change is caused by sudden problems
An older person who suddenly becomes confused – but was alert and oriented the day or week before – is having an acute problem such as an infection, medication side effect, stroke or even a heart attack. These and many other acute problems can be treated effectively if diagnosed properly and in a timely manner.
For example, a senior may experience only confusion when having a heart attack. A younger person would be more likely to have the classic symptoms of chest pressure, tightness, or arm pain.
Remember, Alzheimer’s disease does not come on overnight. You need to search far and wide for the specific cause of any sudden change.