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USA
Certified Dialysis Nurse (CDN) Examination
600 questions
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About this exam
The Certified Dialysis Nurse (CDN) Examination is a U.S. nursing certification exam for registered nurses who provide care to people with kidney disease, including patients receiving dialysis. It assesses whether a candidate has the nephrology nursing knowledge expected in dialysis practice; it is a professional certification, not a general nursing licensure exam. Eligibility commonly includes an active, unrestricted RN license, nephrology nursing experience, and recent continuing education in the specialty. Requirements can change, so check the current Nephrology Nursing Certification Commission (NNCC) candidate handbook before applying.
CDN exam content reflects clinical decisions made across dialysis care, rather than a single equipment or procedure topic. Review renal anatomy and physiology, chronic kidney disease, hemodialysis principles and treatment parameters, vascular access assessment and cannulation, and dialysis water treatment and quality control. Also consider how patient assessment, safety, complications, and nursing interventions connect these areas. The exam uses objective questions; consult the current NNCC handbook for the official content outline and test-day details. Preparation is strongest when it combines focused review with practice explaining why an answer is appropriate.
How to prepare for the Certified Dialysis Nurse exam
- Use the current NNCC CDN exam content outline to organize review, then prioritize renal physiology, CKD, hemodialysis treatment parameters, access care, and water quality.
- Practice applying concepts to patient-care scenarios and, occasionally, use timed multiple-choice questions; review explanations and note why each incorrect option is unsafe or less appropriate.
- Check the NNCC candidate handbook for current eligibility, application steps, exam format, and test policies, and confirm that your RN license, nephrology experience, and continuing education meet the stated requirements.
FAQ
Who is eligible to take the CDN exam?
The CDN credential is intended for registered nurses with nephrology nursing experience. Eligibility commonly includes an active, unrestricted RN license, 2,000 hours of nephrology nursing experience within the specified period, and 20 contact hours of nephrology continuing education. Verify the current requirements in the NNCC candidate handbook before applying.
What is the format of the Certified Dialysis Nurse exam?
The exam uses objective questions to assess nephrology nursing knowledge and clinical judgment. The exact number of questions, testing time, delivery options, and policies should be confirmed in the current NNCC candidate handbook, since official details may be updated.
What subjects should I study for the CDN exam?
Start with the official NNCC content outline. Key areas include renal anatomy and physiology, chronic kidney disease, hemodialysis principles and parameters, vascular access assessment and cannulation, and dialysis water treatment and quality control. Review patient safety and clinical decision-making across these topics as well.