Nephrology Practice Test 2026 May

CNN - Convolutional Neural Networks Practice Test

CNN Practice Test : Free Exam Questions & Study Guide

The Certified Nephrology Nurse (CNN) examination is the premier credential for nurses specializing in kidney care. It validates advanced knowledge in hemodialysis, peritoneal dialysis, transplant, and chronic kidney disease management. Earning this certification demonstrates your expertise and commitment to the nephrology nursing field.

This comprehensive guide provides everything you need to prepare, including free practice questions, a score calculator, salary insights, and detailed study resources. Whether you are working in an outpatient clinic or an acute care hospital, passing the CNN exam is a pivotal step in your nursing career.

❓

175

Total Questions

⏰

HoursTime Limit

🏥

NNCC

Certifying Body

📅

YearsValidity 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 Exam Study Guide

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

💡 CNN Basics

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.

📋 Format

How many questions?: The exam consists of 175 questions, of which 150 are scored and 25 are pretest (unscored).
What is the time limit?: Candidates have 3 hours to complete the examination.
What is the format?: The questions are multiple-choice, covering various domains of nephrology nursing practice.
Is it computer-based?: Yes, the exam is administered via computer at designated testing centers or via live remote proctoring.

📝 Registration

Experience Requirement: You must have at least 2 years of experience as an RN and 3,000 hours in nephrology nursing within the last 3 years.
Education Requirement: A minimum of a Bachelor's degree in Nursing (BSN) or higher is required for the CNN credential (unlike the CDN).
CE Requirement: You must complete 30 contact hours of continuing education in nephrology nursing within the last 3 years.
How to apply?: Applications are submitted online through the NNCC website with the required documentation and fees.

✅ Scoring

What is a passing score?: The passing score is determined by a criterion-referenced method, but generally equates to answering about 70-75% correctly.
When do I get results?: Preliminary results are often available immediately after computer-based testing, with official confirmation following.
Can I retake it?: Yes, if you fail, you can retake the exam, typically after a waiting period and paying a re-examination fee.
Is there a limit?: There is no specific limit on attempts, but you must meet eligibility each time.

💰 Salary

Average Salary: Certified Nephrology Nurses typically earn between $75,000 and $100,000+ annually depending on location and role.
Does certification help?: Yes, certified nurses often receive a differential or higher base pay compared to non-certified peers.
Job Outlook: The demand for nephrology nurses is high due to the increasing prevalence of CKD and ESRD.
Advanced Roles: CNNs often move into management, education, or case management roles within dialysis clinics or hospitals.

CNN Score Calculator

Total Scored Questions

150

Estimated score calculation

105 out of 150 correct

70%

Required to Pass: ~70% (Estimated)

Your Score: 105 correct ✓ PASS

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

CNN Practice Test Questions

Prepare for the CNN - Convolutional Neural Networks exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.

CNN - Convolutional Neural Networks Data A...

CNN Exam Questions covering CNN - Convolutional Neural Networks Data Augmentation Techniques. Master CNN Test concepts for certification prep.

CNN - Convolutional Neural Networks Data A...

Free CNN Practice Test featuring CNN - Convolutional Neural Networks Data Augmentation Techniques Questions and Answers. Improve your CNN Exam score with mock test prep.

CNN - Convolutional Neural Networks Semant...

CNN Mock Exam on CNN - Convolutional Neural Networks Semantic Segmentation. CNN Study Guide questions to pass on your first try.

CNN - Convolutional Neural Networks Semant...

CNN Test Prep for CNN - Convolutional Neural Networks Semantic Segmentation Questions and Answers. Practice CNN Quiz questions and boost your score.

CNN - Convolutional Neural Networks Classi...

CNN Questions and Answers on - Convolutional Neural Networks Classic CNN Architectures. Free CNN practice for exam readiness.

CNN - Convolutional Neural Networks CNN Ar...

CNN Mock Test covering - Convolutional Neural Networks CNN Architecture Fundamentals. Online CNN Test practice with instant feedback.

CNN - Convolutional Neural Networks Convol...

Free CNN Quiz on - Convolutional Neural Networks Convolutional Layer Operations. CNN Exam prep questions with detailed explanations.

CNN - Convolutional Neural Networks Object...

CNN Practice Questions for - Convolutional Neural Networks Object Detection Models. Build confidence for your CNN certification exam.

CNN - Convolutional Neural Networks Overfi...

CNN Test Online for - Convolutional Neural Networks Overfitting and Regularization. Free practice with instant results and feedback.

CNN - Convolutional Neural Networks Poolin...

CNN Study Material on - Convolutional Neural Networks Pooling and Activation Functions. Prepare effectively with real exam-style questions.

CNN - Convolutional Neural Networks Traini...

Free CNN Test covering - Convolutional Neural Networks Training and Optimization. Practice and track your CNN exam readiness.

CNN - Convolutional Neural Networks Transf...

CNN Exam Questions covering - Convolutional Neural Networks Transfer Learning with CNNs. Master CNN Test concepts for certification prep.

CNN - Convolutional Neural Networks Visual...

Free CNN Practice Test featuring - Convolutional Neural Networks Visualizing CNN Feature Maps. Improve your CNN Exam score with mock test prep.

CNN Certified Nephrology Nurse MCQ

CNN Mock Exam on Certified Nephrology Nurse MCQ. CNN Study Guide questions to pass on your first try.

CNN Certified Nephrology Nurse

CNN Test Prep for Certified Nephrology Nurse. Practice CNN Quiz questions and boost your score.

CNN Certified Nephrology Nurse Trivia

CNN Questions and Answers on Certified Nephrology Nurse Trivia. Free CNN practice for exam readiness.

CNN Career Opportunities

Explore the diverse roles available to Certified Nephrology Nurses.

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

To maintain your CNN credential, you must recertify every 5 years. It is crucial to track your continuing education and practice hours.

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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 Questions and Answers

What is the CNN exam?

The Certified Nephrology Nurse (CNN) exam is a comprehensive certification for nurses with experience in nephrology, validating their expertise in kidney care.

How many questions are on the CNN exam?

The exam contains 175 multiple-choice questions. 150 are scored, and 25 are pilot questions that do not count toward your score.

What score do I need to pass?

While the exact raw score can vary slightly by exam version, you generally need to answer about 70-75% of the questions correctly to pass.

How much does the CNN exam cost?

The standard fee is approximately $425. However, members of the American Nephrology Nurses Association (ANNA) receive a discounted rate of around $350.

How long do I have to study?

Most candidates spend 3-6 months preparing for the exam, utilizing study guides, practice tests, and reviewing clinical guidelines.

Can I take the exam online?

Yes, the NNCC offers both in-person testing at C-NET centers and Live Remote Proctoring (LRP) for taking the exam from home.

What happens if I fail?

If you do not pass, you can retake the exam. You must wait a specific period (usually 90 days) and pay a re-examination fee.

Is the CDN different from CNN?

Yes. The CDN (Certified Dialysis Nurse) focuses specifically on dialysis, while the CNN covers the broader spectrum of nephrology nursing and requires a BSN.

Does my experience need to be recent?

Yes, you need 3,000 hours of nephrology nursing experience within the last 3 years to be eligible for the exam.

Do I need a BSN?

Yes, the CNN certification specifically requires a Bachelor of Science in Nursing (BSN) or a higher nursing degree.

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