- Passing standard is a scaled score of 95 on 150 multiple-choice questions in three hours.
- Clinical is 52% of the exam - study it first and hardest.
- Eligibility needs 5 years/5,000 hours of dialysis work, 30 CE hours, and an active CCHT, CHT, or CCNT.
- NNCC's limited-time $100 initial fee runs from April 1, 2026; standard fee is $225.
Quick Facts Snapshot
If you only have five minutes before you close the laptop and want a single mental snapshot of CCHT-A, here it is. Certified Clinical Hemodialysis Technician - Advanced is awarded by the Nephrology Nursing Certification Commission (NNCC), with applications and computer-based testing handled by the Center for Nursing Education and Testing (C-NET) at PSI test centers. It is a credential built for experienced dialysis technicians who already hold a national CCHT, CHT, or CCNT and want to demonstrate advanced clinical judgment.
- Certifying body: NNCC (administered by C-NET)
- Format: 150 multiple-choice questions, 3-hour limit
- Pilot questions: approximately 25 unscored items embedded in the exam per the January 2026 handbook
- Passing standard: scaled score of 95
- Delivery: closed-book, computer-based, no calculator-based calculations required
- Certification term: 3 years
For a deeper walk-through of what each of these facts means for your prep, see the full CCHT-A Study Guide 2026, and if you want the plain-language backstory on the credential itself, start with What Is CCHT-A?
Exam Format at a Glance
The CCHT-A exam is 150 multiple-choice questions administered in a 3-hour session at a PSI test center. The January 2026 application handbook notes that roughly 25 of those questions are unscored pilot items used by NNCC to evaluate future exam content - you won't know which ones they are, so every question should be treated as if it counts.
The exam is closed-book, so there's no reference sheet to lean on mid-test. That makes memorization of core clinical thresholds, complication signs, and technical procedures non-negotiable rather than optional. If you're trying to gauge how tough this actually feels in practice, How Hard Is the CCHT-A Exam? Complete Difficulty Guide 2026 breaks down what makes the format demanding beyond just question count.
The Four Domains, Fast
CCHT-A content is organized into four domains, and they are not weighted evenly. Ignoring the weighting is one of the most common prep mistakes - spending equal time on all four domains means under-preparing for the one that dominates the exam.
Domain 1: Clinical (52%)
This is the exam. More than half of your scored questions live here, covering patient assessment, complications, and treatment decision-making during dialysis sessions.
- Recognizing and responding to intradialytic complications
- Interpreting patient status changes tied to fluid and electrolyte shifts
- Applying advanced clinical judgment beyond entry-level CCHT scope
Domain 2: Technical (20%)
Covers the equipment, machine operation, and procedural knowledge that keeps treatment running safely.
- Dialysis machine setup, monitoring, and troubleshooting
- Water treatment and dialysate systems
- Vascular access care and technical complication management
Domain 3: Role Responsibilities (18%)
Focuses on the technician's professional scope, communication duties, and documentation obligations.
- Scope-of-practice boundaries for advanced technicians
- Patient education and interdisciplinary communication
- Documentation and reporting responsibilities
Domain 4: Environment (10%)
The smallest domain but still worth mastering fully, since every point matters against a 95 passing score.
- Infection control and safety protocols
- Facility and equipment environment standards
- Regulatory and quality-related environmental factors
For a full breakdown of subtopics inside each domain, cross-reference CCHT-A Exam Domains 2026: Complete Guide to All 4 Content Areas. Since Clinical carries more weight than the other three domains combined, most candidates should structure review time in roughly that same proportion.
Eligibility in One Breath
You can't sit for CCHT-A without meeting NNCC's eligibility bar first, and it's more involved than a simple experience minimum. Applicants need:
- Five continuous years of dialysis-technician employment
- At least 5,000 clinical work hours during the preceding five years
- 30 dialysis-related continuing-education contact hours during the preceding three years
- An active national CCHT, CHT, or CCNT credential
- Employer verification and supporting education documentation, including a high-school diploma or GED
Key Takeaway
Gather employer verification paperwork and CE certificates before you start the application - missing documentation is a common cause of delayed approval, not exam difficulty.
Every one of these requirements is explained in granular detail, with documentation tips, in CCHT-A Requirements 2026: Eligibility, Prerequisites & How to Qualify. Once you're certain you qualify, the rest of this cheat sheet is about execution.
Fees and Registration Mechanics
NNCC is advertising a limited-time $100 initial examination fee effective April 1, 2026; outside that window, the standard examination fee is $225. Budget for whichever applies to your application date, and don't assume the discount is permanent.
| Item | Detail |
|---|---|
| Standard exam fee | $225 |
| Limited-time initial fee | $100 (effective April 1, 2026) |
| Application administrator | C-NET (Center for Nursing Education and Testing) |
| Testing delivery | Computer-based at PSI test centers |
| Testing permit window | 90 days after approval, issued by C-NET |
| CE renewal fee | $100 |
| Renewal by examination fee | $225 (replaces CE requirement, not work-hour requirement) |
Once approved, C-NET issues a 90-day testing permit - that clock starts moving the moment you're approved, so don't apply before you're genuinely ready to schedule. A full cost walkthrough, including how the fee schedule interacts with renewal pricing, is available in CCHT-A Certification Cost 2026: Complete Pricing Breakdown. For scheduling windows and how the 90-day permit fits into annual testing cycles, see CCHT-A Exam Dates 2026: Testing Windows, Deadlines & Scheduling.
Scoring and the FailSafe
The passing standard score is 95. This is a scaled score, not a raw percentage, so don't try to reverse-engineer "how many questions you can miss" - treat 95 as the target and prepare across all four domains rather than gambling on partial mastery.
Understanding exactly what a 95 represents, and how it's derived, matters more than most candidates assume going in. The mechanics are covered fully in CCHT-A Passing Score 2026: Exactly What You Need to Pass, and if you want context on how many candidates clear that bar, CCHT-A Pass Rate 2026: What the Data Shows lays out NNCC's reported 2025 data.
Renewal Math
Certification lasts three years, and renewal happens one of two ways:
- Continuing-education renewal: 3,000 work hours plus 30 approved CE contact hours during the preceding three years, at a cost of $100. Within those 30 hours, at least 10 must be nephrology-specific and at least 10 must meet NNCC's listed nursing-education approval requirements.
- Renewal by examination: Costs $225 and replaces the CE requirement - but not the work-hour requirement, which still applies.
Key Takeaway
Start logging CE hours the day you pass - waiting until year two or three to track nephrology-specific and NNCC-approved hours separately is where most renewal headaches begin.
NNCC also provides free online practice-exam access after your application is approved, with the official practice exam offering 50 questions and 90 days of access. Pair that resource with a full-length simulation like the ones on our practice test platform so you're not relying solely on the shorter official sample when gauging readiness.
Last-Week Study Sequencing
With domain weighting in mind, the final stretch before test day should mirror the exam's own emphasis rather than a generic study calendar.
Clinical Deep Review
- Run timed question sets focused on intradialytic complications
- Drill fluid/electrolyte scenario interpretation without a calculator
Technical + Role Responsibilities
- Review machine troubleshooting and vascular access complications
- Revisit documentation and scope-of-practice boundaries
Environment + Full Simulation
- Confirm infection-control and safety protocol details
- Take one full 150-question timed simulation on the practice test site
This sequencing isn't a substitute for a full study plan - it's a closing-week compression of one. For the complete multi-week plan built around all four domains, go back to CCHT-A Study Guide 2026: How to Pass on Your First Attempt.
FAQ
150 multiple-choice questions with a three-hour time limit, including approximately 25 unscored pilot questions per the January 2026 handbook.
No. The handbook states that no questions require calculator-based calculations, and the exam is closed-book overall.
The passing standard is a scaled score of 95.
If you're an eligible current CCHT holder, the FailSafe provision renews your CCHT credential for three years, though it does not award the CCHT-A itself.
The standard examination fee is $225, though NNCC is offering a limited-time $100 initial examination fee effective April 1, 2026.