FoxExams
USA
Certified Nephrology Nurse (CNN) Examination
600 questions
Session complete
Keep going in the FoxExams app for adaptive practice, mocks, and Ask Fox.
See you tomorrow
About this exam
The Certified Nephrology Nurse (CNN) Examination is a U.S. board-certification exam for registered nurses with experience caring for people with kidney disease. It assesses specialized nephrology nursing knowledge and clinical judgment; it is intended for nurses already working in the field, not as an entry-level nursing exam. Candidates commonly review nephrology assessment and care planning, kidney anatomy and renal function, chronic kidney disease staging and progression, and recognition and management of acute kidney injury.
Preparing for the CNN exam means connecting clinical knowledge to nursing decisions across the course of kidney disease. Review how assessment findings inform care plans, how renal function changes affect care, and how to recognize complications and respond appropriately. Use the current NNCC candidate handbook and exam content outline to confirm eligibility, test format, and the topics emphasized for your cycle. A small amount of timed multiple-choice practice can help you identify weak areas, but reviewing the reasoning behind each answer is more useful than memorizing isolated facts.
How to prepare for the CNN Examination
- Start with the current NNCC exam content outline. Map your review to nephrology nursing assessment and care planning, renal anatomy and function, CKD staging and progression, and AKI recognition and management.
- Use timed question sets to practice applying clinical knowledge. After each set, review why the best answer fits the scenario and revisit concepts behind incorrect answers.
- Check the NNCC candidate handbook for current eligibility requirements, registration steps, exam structure, and recommended references; requirements and details can change by testing cycle.
FAQ
Who is eligible to take the CNN Examination?
The CNN Examination is intended for registered nurses with nephrology nursing experience. Eligibility requirements, including experience and continuing education criteria, are set by the Nephrology Nursing Certification Commission (NNCC); check its current candidate handbook before applying.
What is the format of the CNN exam?
The CNN is a standardized certification examination with multiple-choice questions. Check the current NNCC candidate handbook for the applicable number of questions, testing time, delivery details, and other exam-day rules.
What subjects should I study for the Certified Nephrology Nurse exam?
Review the current NNCC exam content outline. Key areas include nephrology nursing assessment and care planning, kidney anatomy and renal function, chronic kidney disease staging and progression, and acute kidney injury recognition and management.