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How Our Practice Test Works?

Study wherever, whenever with these quiz types:

Pick a Mode

Pick a Mode

You can choose Exam Mode (timed 90-minute simulation) or Study Mode for preparation.

Realistic Mix

Realistic Mix

Questions reflect both multiple-choice and scenario/performance-style prompts aligned to CNN objectives.

Detailed Explanations

Detailed Explanations

Every question includes a clear explanation, so you know why an answer is correct.

Domain Analytics

Domain Analytics

See strengths/weaknesses by the domains & sub-topics to focus your revision.

Reattempts

Reattempts

Retake sets to improve your speed and accuracy; watch your score trend toward the benchmark.

Exam Simulator

Exam Simulator

Get a feel for the real exam with our Nephrology Nursing Certification Commission (NNCC) practice test.

Why Choose PrepHOW for CNN Practice Questions

Train the way you'll be tested. Our platform replicates the real Nephrology Nursing Certification Commission (NNCC) experience and turns every attempt into clear, actionable progress-so you waste less time and pass sooner.

Real Exam Feel

Exam/Study modes, question flagging, and instant or end-of-exam feedback.

Smarter Analytics, Faster Improvement

Trend charts so you can see when you're consistently above the passing scrore.

Quality You Can Trust

Clear, teach-back explanations with why the correct answer is right and why others aren't.

Frequently Asked Questions

What is the Certified Nephrology Nurse (CNN) Exam?

The CNN exam is a professional certification assessment administered by the Nephrology Nursing Certification Commission (NNCC) that validates a nurse's specialized knowledge and competency in nephrology nursing. This certification demonstrates expertise in caring for patients with kidney disease, including those undergoing dialysis and kidney transplantation.

Who is eligible to take the CNN exam?

Usually you must be a licensed registered nurse (RN) and meet certain experience/clinical practice requirements in nephrology nursing (hours, duration). Check the current NNCC eligibility criteria.

What content areas are covered in the CNN Exam blueprint?

The exam tests knowledge across five major domains of nephrology nursing practice:

  • Concepts of Kidney Disease
  • Hemodialysis
  • Peritoneal Dialysis
  • Transplant
  • Acute Therapies

How do I apply and schedule my exam?

You apply directly through the Nephrology Nursing Certification Commission (NNCC) website. Once your application is approved, you will receive an Authorization to Test (ATT) email. This allows you to schedule your exam at a convenient Pearson VUE test center location.

Do I need Continuing Education (CE) credits to apply for the exam?

Yes, applicants must have completed a minimum of 30 contact hours of approved continuing education specifically in nephrology nursing within the three years immediately preceding the application.

What salary or career benefits come with CNN certification?

CNN-certified nurses often earn 5-10% more than non-certified peers, with dialysis/nephrology RNs averaging $90,000 annually (higher in states like California at $110,000+). Benefits include enhanced credibility, patient safety improvements, job advancement (e.g., charge nurse roles), and employer incentives like tuition reimbursement. It's ideal for RNs in home dialysis, inpatient AKI care, transplants, or apheresis.

What is the best way to prepare for the CNN exam?

Successful candidates typically use a combination of:

  • Official Resources: The NNCC's Core Curriculum for Nephrology Nursing and the CNN Exam Detailed Content Outline are essential.
  • Review Courses: Many professional organizations offer in-person or online review courses.
  • Prephow CNN Practice Tests: Taking timed practice exams helps you become familiar with the question format and identify areas for further study.
  • Study Groups: Collaborating with peers who are also preparing for the exam can be highly beneficial.

What are the benefits of becoming a CNN?

Becoming a CNN offers numerous professional and personal benefits, including:

  • Enhanced Professional Credibility: Demonstrates your expertise to employers, colleagues, and patients.
  • Career Advancement: Can lead to opportunities for promotions, specialized roles, and higher earning potential.
  • Improved Patient Care: The deep knowledge gained through preparation directly translates to better outcomes for your nephrology patients.
  • Professional Pride: Validates your dedication and commitment to the specialized field of nephrology nursing.