Medical science has come a long way in helping patients to live longer. As much as physicians are needed in the medical process, nurses are also important to patients. Nurses provide their patients with the doctor’s recommendations to improve their health. Nurses do not gain their exceptional level of skill over night they work hard in nursing school learning the latest medical information to help their patients overcome their health issues.The health-care industry has continued to change dramatically over the past few years, transforming the roles of nurses and escalating the opportunities for those who graduate from nursing school. The current shortage of nurses is caused by an increasing number of hospitalized patients who are older and more acutely ill, a growing elderly population with multiple chronic health problems, and expanded opportunities in HMOs, home care, occupational health, surgical centers, and other primary-care settings. Expanding technological advances that prolong life also require more highly skilled personnel.