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Certified Nephrology Nurse

The Certified Nephrology Nurse (CNN) credential from the Nephrology Nursing Certification Commission (NNCC) is for registered nurses with experience in nephrology, dialysis, or transplant nursing. The exam has 150 questions and a 3-hour time limit.

Practice quizzes
5
Time limit
180 min
Our users' pass rate
70%
Modules
4
Our price
FREE
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Certification details

Certifying bodyNephrology Nursing Certification Commission (NNCC).
EligibilityUnrestricted RN license, minimum 2,500 hours of nephrology nursing experience within the prior 2 years, and 30 contact hours of nephrology-specific continuing education within 2 years prior to application.
Exam format150 questions, 3-hour time limit, computer-based testing. Passing score is 95 (70% correct).
Content outlineConcepts of Kidney Disease Across the Life Span (30%), Acute Inpatient Therapies (25%), Peritoneal Dialysis (20%), Home Hemodialysis (15%), Transplant (10%).
Fee$350 standard / $300 partner (member) rate.
RecertificationEvery 3 years; 45 continuing education hours required, at least 15 nephrology-specific.
Official sourceNephrology Nursing Certification Commission (NNCC)

Nephrology nursing certification covering renal disease management and dialysis care.

Who it's for

Registered nurses with clinical experience in nephrology, dialysis, or transplant nursing — NNCC designed the credential to formally recognize nurses who've moved beyond general med-surg competency into the specialized physiology and technology of kidney disease management.

What's covered

  • Concepts of kidney disease across the life span — 30%
  • Acute inpatient therapies — 25%
  • Peritoneal dialysis — 20%
  • Home hemodialysis — 15%
  • Transplant — 10%

What to expect

Questions lean heavily on applied clinical judgment — interpreting lab trends, recognizing dialysis complications, prioritizing nursing actions — rather than isolated definitions, consistent with NNCC's blueprint weighting toward the highest-volume clinical domains.

How to prepare

ANNA (the American Nephrology Nurses Association) is the field's primary review-course and study-guide source; NNCC itself publishes the exam blueprint and eligibility criteria but leaves prep materials to ANNA and other third parties, so plan to study nephrology physiology and dialysis modality specifics over several weeks.

CNN Practice Quiz 1
Practice quiz · 20 questions · untimed
CNN Practice Quiz 2
Practice quiz · 20 questions · untimed
CNN Practice Quiz 3
Practice quiz · 0 questions · untimed
CNN Practice Quiz 4
Practice quiz · 0 questions · untimed
CNN Practice Quiz 5
Practice quiz · 0 questions · untimed

DISCLAIMER: This exam preparation course is not affiliated with or endorsed by the Nephrology Nursing Certification Commission (NNCC). The content is designed to assist students in preparing for the Certified Nephrology Nurse (CNN) exam but is created and provided by an independent third party. NNCC and CNN are registered trademarks of the Nephrology Nursing Certification Commission. The use of this trademark does not imply any affiliation with or endorsement by the NNCC.