What Does CHN Stand For?

The Short Answer: Certified Hemodialysis Nurse

On this site, CHN stands for Certified Hemodialysis Nurse. It is a nephrology nursing credential for nurses who deliver hemodialysis care to patients with end-stage renal disease (ESRD). The letters "CHN" appear in other fields too, but nothing in this guide refers to those credentials. Everything here describes the hemodialysis nursing certification and only that.

If you want deeper background on the same question from different angles, our related explainers cover what CHN is, the CHN meaning, and what CHN certification involves. This article focuses on the expansion of the acronym and what sits behind each word.

Breaking the Name Into Its Three Words

• Certified: You earn the title by passing a standardized examination after documenting qualifying work experience, not simply by completing a course.
• Hemodialysis: The scope is narrowed to extracorporeal blood treatment for kidney failure. This is not a general nephrology exam and not a peritoneal dialysis exam.
• Nurse: The credential is built around nursing practice, which is why RN and LPN/LVN licensure sits at the front of the eligibility pathway.

Who Awards the Credential

The certifying body is the Board of Nephrology Examiners Nursing & Technology (BONENT). BONENT administers the examination, reviews applications, confirms experience and references, and manages renewal. Knowing the certifying body matters practically: eligibility rulings, fee schedules, authorization steps, and accommodation requests all run through BONENT, so its current website is the authority when details differ from third-party summaries.

What the Letters Signal to Employers

The Certified Hemodialysis Nurse credential tells a dialysis employer that a nurse has documented ESRD experience and has demonstrated knowledge across the clinical, managerial, professional, and environmental sides of dialysis care. The people most likely to value it are the ones who staff and run treatment units: outpatient dialysis facilities, hospital-based dialysis programs, and home-training and acute-care dialysis services. For a closer look at roles, see our overview of CHN jobs, and for earnings context, the CHN salary guide. If you are weighing the investment, Is the CHN Certification Worth It? walks through the return side of the equation.

What the Exam Actually Covers

The acronym question usually leads to the next one: what do you have to know? The official content outline divides the exam into four domains totaling 100%. Notice how lopsided the distribution is.

One naming quirk is worth knowing: the official PDF labels Domain 1 "Supervision/Management," while BONENT's website overview words it as "Supervision/Administration." They describe the same domain, so do not be thrown if you see either label in your materials. Our complete guide to all four CHN content areas goes deeper into each one.

Format, Timing, and Scoring

The Certified Hemodialysis Nurse examination consists of 150 multiple-choice questions administered over 3 hours. BONENT does not publish how many of those items are scored versus unscored, so plan to treat every question as if it counts.

Delivery Options

The exam may be taken by computer-based testing (CBT) through a linked network of testing sites, or on paper under approved onsite proctoring. The CBT option is not a verified at-home route, so plan on a proctored setting either way. Accommodations are available for candidates who need them, and authorization and application deadlines apply, so build time into your schedule. See CHN exam dates, testing windows, and deadlines for scheduling guidance.

What "70" Really Means

The passing score is a scaled score of 70 on a 1-100 scale. This is not a verified 70% raw score. Scaled scoring converts your raw performance into a standardized scale, so you cannot assume that answering 70% of questions correctly guarantees a pass. BONENT also does not publicly disclose a pass rate, which is why any specific pass-rate number you encounter deserves skepticism. We unpack both topics in CHN passing score: exactly what you need to pass and CHN pass rate: what the data shows.

Who Can Sit for It

The "Nurse" in Certified Hemodialysis Nurse is enforced through eligibility. The standard route requires:

• An eligible RN license plus one year of nephrology experience, or an LPN/LVN license plus two years of experience
• Active work in ESRD care
• Two signed references

There is also an approved corresponding nurse-training pathway. It requires BONENT confirmation plus documentation, so contact BONENT before assuming a training program qualifies. For the full walkthrough, read CHN requirements: eligibility, prerequisites, and how to qualify.

Fees and Registration Mechanics

BONENT publishes a straightforward fee structure with no member versus non-member tiers.

An optional USD 100 expedite fee is available if your timeline is tight. Note that the linked general handbook was last revised in January 2021 and its fee figures are superseded by BONENT's current webpage, so always verify costs there before paying. The 2026 renewal booklet is a renewal document, not an exam-version update, so do not read it as evidence that the exam content changed. For a full cost picture, see CHN certification cost: complete pricing breakdown.

Staying Certified: Four-Year Cycle

Certification is valid for four years. Standard renewal requires 40 contact hours, with at least 30 of them in nephrology. Alternatively, you can renew through a qualifying examination or a once-in-lifetime waiver route. Maintenance fees are USD 65 annually or USD 240 prepaid for four years, which works out to less than paying annually if you prefer to settle it all at once.

Avoiding Acronym Mix-Ups

Because "CHN" is shared by more than one credential in the wider world, a quick web search can return pages that look relevant but describe something else entirely, with different certifying bodies, fees, and exam formats. A few habits protect you:

1. Confirm the certifying body is BONENT before trusting any fee, date, or requirement.
2. Check that the exam described is 150 multiple-choice questions over 3 hours with four domains.
3. Verify that the content discussed involves hemodialysis, ESRD, vascular access, and dialysis environments.
4. When two sources disagree, defer to the current BONENT website.

Our site-wide explainers, including what CHN means and what a CHN is, all stay within the hemodialysis nursing meaning.

Turning the Blueprint Into a Study Sequence

BONENT does not publish a universal mandatory number of preparation hours, so your timeline depends on your background. What the blueprint does tell you is where to put your time. Because Domain 2 holds 74.5% of the exam, it should anchor your schedule, with the smaller domains slotted around it. Here is one way to sequence an eight-week plan around the weighting:

For a fuller strategy, see our CHN study guide, the one-page CHN cheat sheet, and our perspective on how hard the CHN exam is. To rehearse the question style under realistic conditions, try the CHN practice tests, and if you are looking for structured learning content, the CHN training overview is a good starting point.

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