Lily Bush spends dozens of hours a week learning how to dispense medications, draw blood, dress wounds, become an expert in anatomy, deal with family members and the hundreds of other skills a registered nurse is supposed to master. There's always something more to learn and another chapter to study. For years, the demands of a nursing education also brought a reward. It was a recession-proof career, a lure for generations of students. "I knew going into school I was choosing a safe major, because all you heard is how badly hospitals needed nurses," said Bush, a junior at Indiana University School of Nursing.