CNN Practice Test 2026 — free exam prep

CNN Practice Test

Updated for September 2026
175Total Questions
3HoursTime Limit
🏥NNCCCertifying Body
📅5YearsValidity Period

Note: To sit for the CNN exam, you must have at least 3,000 hours of experience in nephrology nursing within the last three years and hold a current, unrestricted RN license.

Cnn Practice Test - CNN Exam study guide

CNN Exam Study Guide

Use this interactive guide to understand the key components of the Certified Nephrology Nurse exam, from registration to scoring.

What is CNN certification?
The Certified Nephrology Nurse (CNN) credential validates a nurse's comprehensive knowledge in nephrology, including dialysis, transplant, and CKD care.
Who accredits the exam?
It is accredited by the Nephrology Nursing Certification Commission (NNCC).
Why get certified?
Certification can lead to career advancement, higher pay, and recognition as an expert in nephrology nursing.
Is it mandatory?
While not legally required to practice as a nurse, many employers require it for advanced roles or magnet status hospitals.

CNN Score Calculator

Total Scored Questions

150

0105150

105 out of 150 correct

70%

Required to Pass: ~70% (Estimated)

Your Score: 105 correctPASS

Many dialysis organizations (like DaVita or Fresenius) and hospitals offer reimbursement for certification exams. Check with your HR department before paying out of pocket.

Nephrology Nursing Certification - CNN Exam study guide

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CNN Certified Nephrology Nurse

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CNN Certified Nephrology Nurse Trivia

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CNN Career Opportunities

Explore the diverse roles available to Certified Nephrology Nurses.

🏥

Acute Care Nurse

Provide bedside dialysis (HD, CRRT, SLED) to critically ill patients in ICU and hospital settings. High acuity environment.

🩸

Outpatient Clinic Nurse

Manage chronic hemodialysis patients in community clinics. Build long-term relationships and manage regular treatments.

🏡

Home Therapy Nurse

Train and support patients performing Peritoneal Dialysis (PD) or Home Hemodialysis. Focus on patient education and independence.

🩺

Transplant Coordinator

Manage the complex process of kidney transplantation, from pre-transplant evaluation to post-operative follow-up and education.

📋

Nurse Manager

Oversee operations, staffing, and regulatory compliance of a dialysis unit or nephrology department. Leadership role.

CNN Test Day Checklist

  • Valid Government ID
  • Exam Permit/Confirmation
  • RN License Number
  • Arrive 30 Mins Early
  • Leave Electronics in Car
  • Light Jacket (Testing centers get cold)
  • Water/Snack (for locker)
  • Positive Mindset!

Ready to Become a CNN?

Join thousands of successful nephrology nurses who advanced their careers with our free practice resources.

CNN Certification Renewal

🔄

Renewal Cycle

5 Years

📚

CE Required

45 Hours

💼

Practice Hours

3,000 Hrs

Keep track of your CE certificates as you earn them. The NNCC audits a percentage of renewals, so having your documentation ready prevents stress later.

CNN: Pros and Cons

Pros
  • +nephrology — cNN exam preparation strengthens your knowledge across all domains
  • +Passing the exam proves competency to employers and clients
  • +Study materials and practice tests are widely available
  • +Exam-based credentials are portable across states and employers
  • +Clear exam objectives help focus your study plan effectively
Cons
  • Exam anxiety can affect performance — practice tests help reduce it
  • Registration fees are non-refundable if you miss your test date
  • Limited retake opportunities may apply with waiting periods
  • Exam content updates periodically — use current study materials
  • Testing center availability may require advance scheduling

CNN Questions and Answers

About the Author

David Chen
David ChenMS, CISSP, CEH, AWS-SAA, Azure Expert

Senior Cloud Architect & Cybersecurity Certification Trainer

Stanford University

David Chen holds a Master of Science in Computer Science from Stanford University and has earned over 25 professional certifications across AWS, Microsoft Azure, Google Cloud, cybersecurity, and enterprise architecture domains. He works as a solutions architect and now focuses on helping IT professionals pass cloud, security, and technical certification exams.