Standard relay games where necessary elements of first aid kit need to be collected . First team to put lid on first aid box and sit down win.
Either actual items from first aid kit times number of teams or laminated pictures of these items. ( i printed pictures from Samantha Scouting, these could also be adapted for pairs etc))
Four first aid boxes. ( I covered shoe boxes with red paper and put white crosses on them)
Take opportunity to discus what is needed in first aid box.
Play relay game as usual.