Hoehn and Yahr Scale

Question 1

Hoehn and Yahr Stage I

Answer 1

minimal or absent disability
unilateral symptoms

Question 2

Hoehn and Yahr Stage II

Answer 2

minimal bilateral or midline involvement
no balance involvement

Question 3

Hoehn and Yahr Stage III

Answer 3

impaired balance
some activity restrictions

Question 4

Hoehn and Yahr Stage IV

Answer 4

all symptoms present and severe
stands and walks-requires assistance

Question 5

Hoehn and Yahr Stage V

Answer 5

confinement to bed or wheelchair