What should we do? Employee is missing work because of what we suspect is domestic abuse

Q. We have a female employee who is having personal problems and keeps missing work. She sometimes comes to work with visible bruises, and we suspect her spouse is abusive. While we’re sympathetic, we also have important work that isn’t getting done and the employee’s last-minute absences are a problem. We’ve told her how important attendance is, but the problem isn’t going away. Can we fire her?