National League for Nursing Pre-Admission Exam (NLN PAX-RN/PN) Home; Nursing Entrance Exams; National League for Nursing Pre-Admission Exam (NLN PAX-RN… The National League for Nursing (NLN) Pre-Admission Exam (PAX) is a national standardized examination that tests a prospective PN or RN student's background in math, science and English. Achieving a minimal score at the 60th composite percentile is one of the three possible admission options for the Nursing program. West…