Stage 7 -- Severe Alzheimer's
Speech ability declines to about a half-dozen intelligible words. Progressive loss of abilities to walk, sit up, smile, and hold head up. (Reisberg, et al., 1988)
7A - In a course of an average day or an intensive interview, no consistently meaningful verbal communication, only stereotypical phrases, or ability is speak is limited to 6 or fewer intelligible words.
7B - In a course of an average day or an intensive interview, ability to speak is limited to the use of a single intelligible word which the patient may repeat over and over.
7C - Ability to ambulate without personal assistance is lost.
7D - Cannot sit up without assistance (patient will fall over if there are no lateral arm rests on the chair).
7E - Loss of ability to smile.
7F - Loss of ability to hold head up independently.