Nearly any LPN training program out there is going to require either a high school diploma. If you don't have one, usually a GED certificate will work as well.
Most nursing schools and training programs require applicants to have an active CPR certification, either at the basic level or at the healthcare provider level.
Your LPN training program may recommend that you have the hepatitis B vaccine series, and you may need to show proof of an up-to-date MMR and other vaccinations.
Most schools and hospitals require healthcare workers to show documentation of recent tuberculosis screening or immunity.
Your program may require you to have taken educational prerequisites, such as English composition, basic biology and chemistry courses, cultural diversity awareness, or possibly anatomy and physiology.
The majority of LPN programs require applicants to either pass a math proficiency test or show documentation of having passed college algebra or a similar math course.