NCLEX-RN Preparation and ReviewExam Master’s online board review for the NCLEX-RN nursing examination prepares students for the actual NCLEX-RN test. Exam Master’s online board review for the NCLEX-RN nursing examination offers realistic practice exams, and provides more than 3,800 NCLEX quality review questions covering the four Client Needs areas (safe and effective care environment, health promotion and maintenance, psychosocial integrity and physiological integrity).