My friend gave up Nursing as her first preference because she thought that it had only entailed 'shift work' and thought that she was better than that. However, as Jess said, nursing is more than just shift work, they have the power to do much more, and sometimes, even the highest calibre of nurses get paid a very sufficient wage, and can easily assist in surgery.
Now, my friend wants to do medicine like everyone else at school. 
Yeah, such a common misconception about nursing
The opportunities in Nursing are infinite. Nurses don't necessarily only do "shift work" in hospitals; there are a myriad of settings and areas which nurses can choose to work in. This obviously includes hospital based work (where you can specialise in a particular area, eg. Intensive care, midwifery, neonatal care, oncology etc), or you could go into management, research, case management, school nursing/work place nursing, community based health care, become a disease educator, lecturer, practice manager, work in radiology/ cath labs, work in pathology labs, do policy advising, or become a nurse practitioner etc.
It's a really great career. I just can't choose between medicine and nursing... although they are different, they both involve helping people one on one, are rewarding careers, and include the study of biology, physiology, pathology and psychology, which I am highly interested in. So I think I'd enjoy both.
But it's such a shame that so many individuals are deterred from nursing due to the misconceptions which float around about the nature of the career, and its seemingly "unattractive wages" (although, whilst nursing should be funded better, the wages are really not that bad at all.) We need intelligent, motivated and compassionate nurses.

I wish the incentives were more visible so more people would be attracted to the career.