CCHT-A study guide
CCHT-A · Work through your exam, one topic at a time.
The Certified Clinical Hemodialysis Technician – Advanced (CCHT-A) is a nephrology certification credential offered by the Nephrology Nursing Certification Commission (NNCC). NNCC describes the CCHT-A as reserved for clinical dialysis technicians with at least 5,000 hours and 5 years of experience, which separates it from the entry-level CCHT credential open to practicing dialysis technicians holding a high school diploma or GED. The exam is intended for technicians who already run routine treatments competently and want their advanced judgment in machine and water-system management, patient teaching, and quality work validated. Content spans four practice domains: clinical practice; dialysis delivery systems and water treatment; patient education and support; and professional practice and quality improvement. The CCHT-A study guide has 4 sections and about 1,287 words.
01Clinical Practice: Monitoring, Complications, and Vascular Access
Most clinical-practice items test whether you can link a patient's signs to a cause and a first action. Know the baseline: full vital signs and weight before treatment, then per facility protocol during treatment (commonly every 30 minutes), and more often when the patient is unstable or the ultrafiltration rate is high.
350 words, about 2 min02Dialysis Delivery Systems and Water Treatment
Picture two circuits that never mix: blood on one side of the membrane, dialysate on the other. Clearance of small solutes rises with blood flow, dialysate flow, and dialyzer surface area; high-flux membranes also remove larger middle molecules.
315 words, about 2 min03Patient Education and Support
Education items reward a patient-centered, plain-language approach over information dumping. Adults learn when content is relevant, immediately usable, and broken into small steps; they retain far more when they practice and repeat than when they simply listen.
322 words, about 2 min04Professional Practice and Quality Improvement
Technicians work within a defined scope: performing dialysis treatments and related tasks under registered nurse delegation and state law. You do not assess, diagnose, develop the plan of care, or change prescriptions; when a finding is outside your scope, report it to the nurse.
300 words, about 2 min