some movement in right arm

As of Friday nite Dad has some movement in his right arm. I hold his arm upright with my elbow and his on the bed.(kinda like arm wrestling) With three pushes he puts my arm to the bed. His left arm does not have as much pressure. However his top lip still not moving. He is off the morphine and has been having hallucinations. One step forward 2 back. He has another chest infection and is sooooo tired. Any thoughts on the hallucinations. Is it just from coming off the narcotics?