Do I have to be an LVN (Vocational Nurse) first to be a Registered Nurse (RN) ?

I wanted to know what I have to do before joining a Registered Nurse Program.

View this post on my blog: http://travelnursesuccess.com/do-i-have-to-be-an-lvn-vocational-nurse-first-to-be-a-registered-nurse-rn