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CNN practice questions - frequently asked questions

Plain answers about how CNN Exam Prep works: the exam, the questions, pricing, the free trial, and what you actually get.

No - and you should be wary of any site claiming otherwise. Every question here is original, written to mirror the style, difficulty, and judgment the real CNN exam tests. Each one comes with a plain-language explanation of why the right answer is right and the others aren't.

The CNN exam spans 5 domains: Concepts of Kidney Disease Across Life Span (30% of the exam); Acute Inpatient Therapies (25% of the exam); Peritoneal Dialysis (20% of the exam); Home Hemodialysis (15% of the exam); Transplant (10% of the exam). Every practice question on this site is tagged to one of these domains.

The domains are not weighted equally on the exam. By share of the marks: Concepts of Kidney Disease Across Life Span 30%; Acute Inpatient Therapies 25%; Peritoneal Dialysis 20%; Home Hemodialysis 15%; Transplant 10%.

The CNN exam has 150 questions and is completed in 3 hours. Our timed practice mirrors that length and pacing, so exam day feels familiar.

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