What is the passing score for the CDN exam?

The CDN exam uses a scaled scoring system, and candidates must achieve a scaled score of 25 or higher to pass. The passing standard is determined through a criterion-referenced process, meaning it is based on the knowledge level expected of an entry-level practitioner rather than a curve against other test-takers.

How do I register for the CDN exam?

To register, you must first submit an application through the Commission on Dietetic Registration (CDR). Once your eligibility is confirmed, you receive an Authorization to Test letter. You then schedule your exam appointment through Pearson VUE, which operates testing centers nationwide. The authorization period is typically 12 months from the date of issue.

How much does the CDN exam cost?

The CDN exam registration fee is approximately $200, paid directly to CDR when you submit your application. Additional costs may include state licensure application fees, which vary by state and typically range from $50 to $150. If you need to retake the exam, you will need to pay the full registration fee again for each attempt.

How long is the CDN exam?

Candidates are given 2.5 hours to complete the CDN exam. The test uses a computer-adaptive format, meaning the difficulty of questions adjusts based on your responses. Most candidates finish within 90 minutes to two hours. A short tutorial is provided before the exam begins and does not count toward your testing time.

Where can I take the CDN exam?

The CDN exam is administered at Pearson VUE testing centers located throughout the United States. There are hundreds of testing locations available, typically in major cities and metropolitan areas. When scheduling through Pearson VUE, you can search for the nearest available center by entering your zip code and selecting a date and time that works for you.

How long is the CDN certification valid?

The CDN credential must be renewed every five years through the CDR recertification process. During each five-year cycle, you must complete a minimum of 75 continuing professional education units (CPEUs). At least one CPEU must be in the ethics category. Failure to meet recertification requirements results in loss of your credential.

What happens if I fail the CDN exam?

If you do not pass the CDN exam, you may retake it after a 45-day waiting period. You must submit a new application and pay the full exam fee for each retake attempt. There is no limit on the number of retake attempts, provided your authorization to test remains valid. A diagnostic report is provided to help identify areas that need improvement.

Can I use a calculator on the CDN exam?

Yes, an on-screen calculator is provided within the Pearson VUE testing software for questions that require mathematical calculations. You are not permitted to bring your own calculator or any personal items into the testing room. Scratch paper or a dry-erase board is provided at the testing center for working through calculations during the exam.

CDN Exam 2026

Name: CDN Exam 2026
Uploaded: 2023-06-02T22:37:04.000Z
Description: Prepare for the gatb certification. Practice questions covering all exam domains with explanations and instant feedback.

Prepare for the gatb certification. Practice questions covering all exam domains with explanations and instant feedback.

CDN - Certified Dialysis Nurse By Dr. Sarah MitchellMay 7, 202653 min read

⏱️3 HoursTime Limit

📝150Questions

✅70%Pass Rate

💵$350Exam Fee

Success on the CDN exam requires a deep understanding of hemodialysis, peritoneal dialysis, and patient care. Our CDN study guide breaks down complex nephrology topics into manageable sections.

Certified Dialysis Nurse - CDN Exam study guide

CDN Practice Test Questions

Prepare for the CDN - Certified Dialysis Nurse exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.

CDN Complications and Emergency Management

CDN Exam Questions covering Complications and Emergency Management. Master CDN Test concepts for certification prep.

CDN Dialysis Adequacy and Prescription

Free CDN Practice Test featuring Dialysis Adequacy and Prescription. Improve your CDN Exam score with mock test prep.

CDN Dialysis Complications and Emergency M...

CDN Mock Exam on Dialysis Complications and Emergency Management. CDN Study Guide questions to pass on your first try.

CDN Fluid and Electrolyte Balance in Dialysis

CDN Test Prep for Fluid and Electrolyte Balance in Dialysis. Practice CDN Quiz questions and boost your score.

CDN Patient Education and Psychosocial Care

CDN Questions and Answers on Patient Education and Psychosocial Care. Free CDN practice for exam readiness.

CDN Patient Education and Quality of Care ...

CDN Mock Test covering Patient Education and Quality of Care in Dialysis. Online CDN Test practice with instant feedback.

CDN Renal Pharmacology for Dialysis Nurses

Free CDN Quiz on Renal Pharmacology for Dialysis Nurses. CDN Exam prep questions with detailed explanations.

CDN Vascular Access Management

CDN Practice Questions for Vascular Access Management. Build confidence for your CDN certification exam.

CDN Water Treatment and Dialysis Equipment

CDN Test Online for Water Treatment and Dialysis Equipment. Free practice with instant results and feedback.

CDN Certified Dialysis Nurse

CDN Study Material on Certified Dialysis Nurse. Prepare effectively with real exam-style questions.

CDN Certified Dialysis Nursing MCQ

Free CDN Test covering Certified Dialysis Nursing MCQ. Practice and track your CDN exam readiness.

CDN Dialysis Nursing

CDN Exam Questions covering Dialysis Nursing. Master CDN Test concepts for certification prep.

FREE CDN PRACTICE TEST

Certified Dialysis Nurse Flashcards

Study key concepts for your dialysis nurse certification.

🩸What is the primary function of hemodialysis?

Hemodialysis filters wastes, salts, and fluid from the blood when the kidneys are no longer healthy enough to do this work adequateley.

START CDN PRACTICE TEST

💧What is a common complication of peritoneal dialysis?

Peritonitis is a common and serious complication involving infection of the peritoneum, often caused by contamination of the catheter.

GET CDN EXAM PREP

💉What is an AV fistula?

An Arteriovenous (AV) fistula is a surgical connection between an artery and a vein, providing vascular access for hemodialysis treatments.

REVIEW CDN QUESTIONS

🧪Why is water treatment critical in dialysis?

Dialysis patients are exposed to large volumes of water, and contaminants like bacteria or endotoxins can cause severe reactions like pyrogenic episodes.

TRY CDN MOCK EXAM

📉What is hypotension in dialysis?

Intradialytic hypotension is a drop in blood pressure during dialysis, often caused by rapid fluid removal or inaccurate target weight assessment.

ACCESS CDN STUDY GUIDE

⚕️What is Kt/V?

Kt/V is a measure of dialysis adequacy, where K is urea clearance, t is time, and V is the volume of urea distribution in the patient.

PRACTICE CDN TEST NOW

CDN EXAM QUESTIONS QUIZ

Certified Dialysis Nurse Study Guide

Our CDN study guide covers essential topics. Understanding the test format and requirements is the first step toward becoming a Certified Dialysis Nurse.

What is the CDN certification?	The CDN certification is a credential for registered nurses specializing in dialysis, validating expertise in hemodialysis and peritoneal dialysis.
Who administers the CDN exam?	The CDN exam is administered by the Nephrology Nursing Certification Commission (NNCC).
What are the requirements for CDN?	To take the Certified Dialysis Nurse exam, you need a current RN license and at least 2,000 hours of nephrology nursing experience.
Is the CDN exam hard?	The CDN exam is challenging, covering advanced nephrology concepts. A solid study plan and practice with dialysis certification for RN questions are essential.

What is the CDN certification?

The CDN certification is a credential for registered nurses specializing in dialysis, validating expertise in hemodialysis and peritoneal dialysis.

Who administers the CDN exam?

The CDN exam is administered by the Nephrology Nursing Certification Commission (NNCC).

What are the requirements for CDN?

To take the Certified Dialysis Nurse exam, you need a current RN license and at least 2,000 hours of nephrology nursing experience.

Is the CDN exam hard?

The CDN exam is challenging, covering advanced nephrology concepts. A solid study plan and practice with dialysis certification for RN questions are essential.

Focus on the CDN exam blueprint provided by NNCC. Pay special attention to water treatment standards and vascular access complications, as these are high-frequency topics on the hemodialysis nurse certification test.

START CDN CERTIFICATION PRACTICE

CDN Score Calculator

Total Scored Questions

150

How many questions did you answer correctly?

0105150

105 out of 150 correct

70%

Required to Pass: ~70% (Estimated)

Your Score: 105 correct✓PASS

Plan for a total investment of approximately $400-$500 for your CDN certification, including the exam fee and preparation materials. Membership in the American Nephrology Nurses Association (ANNA) can reduce exam costs.

Hemodialysis Nurse Certification - CDN Exam study guide

Specialized CDN Career Paths

Earning your CDN certification opens doors to specialized roles in nephrology.

👶

Pediatric Dialysis Nurse

Specialize in providing dialysis treatments to children and adolescents, requiring patience and specialized skills.

✈️

Travel Dialysis Nurse

Work on short-term contracts in various locations nationwide, earning higher pay and exploring new places.

🏥

Acute Dialysis Nurse

Provide bedside dialysis in hospital ICUs and ERs for critically ill patients with acute kidney injury.

🏠

Home Dialysis Nurse

Train and support patients performing peritoneal dialysis or hemodialysis at home, offering autonomy.

📋

Clinical Nurse Manager

Oversee clinic operations, staff training, and compliance with safety regulations in dialysis centers.

CDN TEST ONLINE QUIZ

CDN Test Day Checklist

✓Valid Government ID
✓RN License Info
✓Appointment Confirmation
✓Arrive 30 Mins Early
✓Leave Electronics in Car
✓Review Exam Blueprint
✓Dress in Layers
✓Positive Mindset

📄Certified Dialysis Nurse Practice Test Questions and Answers PDF

Master the CDN Exam

Join thousands of nurses who have passed their CDN exam using our comprehensive practice resources.

CDN Renewal Requirements

🕒

Practice Hours

1000 Hours

🎓

Education

45 CEUs

📅

Cycle

3 Years

Keep track of your CE credits and practice hours. You can renew your CDN certification online through the NNCC website up to six months before expiration.

✅Pros

+Validates your knowledge and skills objectively
+Increases job market competitiveness
+Provides structured learning goals
+Networking opportunities with other certified professionals

❌Cons

−Study materials can be expensive
−Exam anxiety can affect performance
−Requires dedicated preparation time
−Retake fees apply if you don't pass

CDN Questions and Answers

About the Author

Dr. Sarah MitchellRN, MSN, PhD

Registered Nurse & Healthcare Educator

Johns Hopkins University School of Nursing

Dr. Sarah Mitchell is a board-certified registered nurse with over 15 years of clinical and academic experience. She completed her PhD in Nursing Science at Johns Hopkins University and has taught NCLEX preparation and clinical skills courses for nursing students across the United States. Her research focuses on evidence-based exam preparation strategies for healthcare certification candidates.