Here are some keywords that may be helpful in searching vocational databases. Try using different combinations and ask a librarian for help with your search strategy.
Nurses OR Nursing, RNs OR LPNs
Nursing Specialties, Emergency, Neonatal, Maternity, Oncological, Pediatric, Psychiatric, Gerontological, Critical Care, Public Health, Transcultural
O*NET (The Occupational Information Network) is a free database developed for the U.S. Department of Labor, offering free analysis of skills necessary for specific career fields.