Are there qualifications to be a baby rocker at a hospital?

I have a friend, seventy seven, who is in independent living. She wants to get a volunteer job at the hospital rocking newborns. Does that position have any qualifications? I ask because she has had one major seizure, three strokes, is on sleeping pills and hasn’t driven a car in months. It seems to me she’d put the babies at risk. I would think they’d check her medical files in their computer and rule her out but I won’t tell her that. What is your opinion?