ataxia helps me to remember that the symptoms of NPH is wet, wobbly, and wacky. But I think the idea is that many of your gross motor functions are compromised.
Technically it is a gait apraxia and it's not really incoordination, but it does not matter for the Step 1. They will most likely describe the difficulty in walking. Even if they use the term ataxia, as long as they indicate dementia and incontinence your answer will be NPH.
