Beefy, she will be able to find work I feel sure but may not enjoy it much. I have known a few UK and Australian nurses who left their jobs fairly quickly. There are options though that I would look into such as some of the private clinics etc.

It doesn't matter that you are not married. She will need to be sponsored by her work rather than by you if you were married. That is the only difference. It means the employer has to do a bit more admin wise to employ her but they are normally happy to do that if they want her.

Search Qatar yellow pages and call all the medical clinics to get an idea of what might be available for her.