讓咱國生物博士或醫生轉米國護士? 這個聽著有點那啥

You already have the Bio or Medical degree, this is great!

You really do not have to spend time and $$ to get another useless degree unless you really love to be a student.

Do you really want to be a nurse? If yes, to ahead do what you want.
Otherwise, follow my suggestions, use couple month of time, focus on a high demand skill, you will change your life...