First, you need to review the information in the International Forum about emigrating as a nurse to the USA.
To my limited understanding, you cannot gain the permit (as a nonAmerican nurse) to work in the USA unless you are an RN and pass the course of study that is equivalent of a BSN program here. Thus LPN or ADN/ASN/diploma RN courses of study would not be acceptable. While NV and the US uses all these nurses, as a noncitizen, you will not get preferred immigration status/working permit with them.
Even with these qualifications, some internationals will require extra courses. In the US, nurses receive education in psych/peds/adults. Some country's nursing programs
only prepare you for specific tracks (as a peds nurse or as a psych nurse, etc.) and require augmentation with extra course work.
Please address Suzanne (moderator of the International Forum) AFTER reading data available in the International forum. She is an amazing resource and can clarify any questions that you might have.