Get our free mobile appThey work hard, doing important work that often goes unnoticed, all while making sure patients in their care receive everything they need. To become a registered nurse (RN) in Michigan, you need to complete an approved nursing program, pass the NCLEX-RN exam, and obtain a license from the Michigan Board of Nursing. As crazy as that idea might sound, a woman was recently sentenced to jail time after she was found guilty of impersonating a registered nurse. Leticia Gallarzo, from Allegan County, was recently sentenced to over six years in federal prison for impersonating a licensed registered nurse (RN). Leticia Gallarzo posed as "Leticia Perri" and others fake names, providing patient care, signing Medicare records, and earning wages while unqualified.