From my personal experience, when I took OPT after doing associate in liberal arts, there was two options; either to go for Nursing (BSN) or for biomedical engineering.  But the problem was if I go for biomedical engineering, then I would have to pay around 4 thousands per year. While if I choose for Nursing then I would have to pay 8 thousand per semester. But later I decided to go for Nursing taking advantages of one year OPT and at least saved some money for my college. It was because, I found that after 4 yrs college degree from engineering, it would be difficult to get job while form nursing was possible.
Well my case may differ from you, but I choose nursing only seeing future job prospective.