Table 1.

Modified Kamofsky’s performance criteria

Grade	Criteria
0	Fully active, performs at predisease level
1	Activity less than predisease level; able to function as acceptable pet
2	Severely compromised activity; ambulatory only to point of eating,
	sleeping, and consistently eliminating in acceptable areas.
3	Completely disabled; must be force fed; unable to defecate or urinate
	in acceptable areas
4	Dead