I think you have to take first training in a government hospital here like basic life support because its a requirements here after that just present your school diploma and liscence and i think it will eat a lot of time on your part as you said your holding a business visa and you have a limited time and just click this link regarding business visa holders so that you know what to do if your coming here to doha hope it helps. http://www.qatarliving.com/node/1600731