On a scale of 0 to 6, your functional system score (FSS) measures how well your major central nervous systems are working and assigns a score to your disability. This score incorporates information about your gait and use of assistive devices. It also involves observation of functions like these:
- Weakness or trouble moving limbs
- Tremor or loss of coordination
- Problems with speech, swallowing, or involuntary eye movements
- Numbness or loss of sensation
- Bowel and bladder function
- Visual function
- Mental functions