Both are nationally recognized FNP certifications accepted by all 50 states, but they differ in format and emphasis. The ANCC FNP-BC (175 questions, 3.5 hours) places greater emphasis on professional role, research, and theoretical foundations alongside clinical content. The AANP FNP-C (150 questions, 3 hours) is more clinically focused. Both require a current RN license and completion of an accredited NP master's or doctoral program. Many candidates choose based on their graduate program's recommendation or their own study strengths. BlitzGrok practice questions are mapped to the ANCC blueprint.