How should you treat a stroke victim once they return to work?

Supportive. As with everyone, you should treat a stroke victim with respect. Give them support if they need it, help if they request it and space if they want it. Just think about how you would want to be treated in the same circumstance and let that be your guide.
Answer. Your workplace should have implanted policies and procedures for this matter, having a stroke is something serious that is put in consideration in a workplace.