Certified Nursing Assistants will be required to take the full 12-month program to earn their PN diploma from Herzing University.At this time Herzing University does not offer a CNA to LPN bridge program. We recommend CNA’s experience the full program despite any prior experience in a nursing environment. Other Questions What if I had a low GPA in college and don’t meet the prerequisites for the ABSN program? How much does a nurse practitioner make? How much does an RN make in Minnesota? What type of MBA concentration is right for me?