fully ambulatory 3.5: Fully ambulatory but with moderate disability in 1 FS and mild disability in 1 or 2 FS; or moderate disability in 2 FS; or mild disability in 5 FS 4.0: Fully ambulatory without aid, up and about 12hrs a day despite relatively severe disability. Able to walk without aid 500 meters 4.5: Fully ambulatory without aid, up and about much of day, able to work a full day, may otherwise have some limitations of full activity or require minimal assistance. Relatively severe disability. Able to walk without aid 300 meters 5.0: Ambulatory without aid for about 200 meters. Disability impairs full daily activities 5.5: Ambulatory for 100 meters, disability precludes full daily activities 6.0: Intermittent or unilateral constant assistance (cane, crutch or brace) required to walk 100 meters with or without resting 6.5: Constant bilateral support (cane, crutch or braces) required to walk 20 meters without resting 7.0: Unable to walk beyond 5 meters even with aid, essentially restricted to wheelchair, wheels self, transfers alone; active in wheelchair about 12 hours a day 7.5: Unable to take more than a few steps, restricted to wheelchair, may need aid to transfer; wheels self, but may require motorized chair for full day's activities 8.0: Essentially restricted to bed, chair, or wheelchair, but may be out of bed much of day; retains self care functions, generally effective use of arms 8.5: Essentially restricted to bed much of day, some effective use of arms, retains some self care functions 9.0: Helpless bed patient, can communicate and eat 9.5: Unable to communicate effectively or eat/swallow 10.0: Death due to MS External links Online EDSS calculator References Diagnostic neurology Multiple sclerosis Medical scales