Sorry to say, but I can't see any way that a nurse would qualify for EB1A, unless there's something particularly unusual about them? EB1A applicants need to have "extraordinary ability in the sciences, arts, education, business, or athletics, which has been demonstrated by sustained national or international acclaim, and whose achievements have been recognized in the field through extensive documentation."
Here's the requirements, you'd need at least 3 out of the 10 (but our lawyers told us 5 out of 10 to be safe, in case USCIS disagreed with 1 or 2) -
"In order to demonstrate you have sustained national or international acclaim and that your achievements have been recognized in your field of expertise, you must either include evidence of a one-time achievement (major internationally-recognized award) or 3 of the 10 listed criteria below (or comparable evidence if any of the criteria do not readily apply):
Evidence of receipt of lesser nationally or internationally recognized prizes or awards for excellence
Evidence of your membership in associations in the field which demand outstanding achievement of their members
Evidence of published material about you in professional or major trade publications or other major media
Evidence that you have been asked to judge the work of others, either individually or on a panel
Evidence of your original scientific, scholarly, artistic, athletic, or business-related contributions of major significance to the field
Evidence of your authorship of scholarly articles in professional or major trade publications or other major media
Evidence that your work has been displayed at artistic exhibitions or showcases
Evidence of your performance of a leading or critical role in distinguished organizations
Evidence that you command a high salary or other significantly high remuneration in relation to others in the field
Evidence of your commercial successes in the performing arts"
Nurses normally are EB3, so that may be an option though?