The largest industry in this country is health care and the largest health care occupation is registered nurses. The Bureau of Labor Statistics projected employment of registered nurses to grow by 23 percent between 2006 and 2016. With a certificate in nursing, you can sit for the NCLEX-RN test to apply for licensure as a registered nurse. You can also advance your career by building on a nursing certificate with career training in a specific area or by obtaining advanced college degrees, which can prepare you for nursing supervision or administration positions. With a nursing certificate and your license, you can advise, treat, and educate patients; assist with diagnostic tests; prepare patient medical histories; analyze test results; administer medications; and many other procedural and patient-related activities. Obtaining your nursing certificate or degree online is a convenient way to start a new career or prepare you for more responsibility in your current career.