Hi an ex nurse,
All 4 criteria need to be met. If you can't do an activity safely,you should score points.
If you can't do it in a reasonable time, you should score points.etc etc.
So, if you can do the activity safely, but you can't do it repeatedly, you should score points.And so on...
I hope this helps.
LL26
Nothing on this board constitutes legal advice - always consult a professional about specific problems 
