CCHT Environment Practice Questions
Area III of 4 in NNCC’s CCHT blueprint · 13–17% of the exam
150 questions across all four areas in 3 hours, with a score for Environment so you know where you stand.
Free Environment drillThe chair and machine are wiped down, but the technician brings the next patient in before the surfaces have dried. What is the problem?
Environment on the CCHT exam
Environment is 13–17% of the CCHT exam, 19 to 25 of the 150 questions. NNCC lists 15 environment activities covering infection control, a safe and therapeutic unit, and emergencies such as fire and evacuation.
- Share of the exam
- 13–17% in NNCC’s blueprint; our mock exam draws 19 of its 125 scored questions from this area
- Our drill
- 10 questions from 65 Environment questions, untimed, an explanation after every answer; one free attempt, unlimited with a pass
What Environment questions test
- Infection control: dialysis and standard precautions, hand hygiene and gloves, cleaning and disinfecting equipment and surfaces, isolation and vaccinations, and encouraging coworkers to follow the rules
- Safety: body mechanics, preventing falls, clear emergency exits, chemical safety and a safe environment according to regulations
- The facility: starting up and shutting down, and keeping a therapeutic environment with low noise and comfortable temperature
- Behavior and emergencies: escalating behavior of patients, visitors or staff, fire during treatment and evacuation drills
Sit the full exam under the real clock
150 questions across all four areas in 3 hours, with a score for Environment so you know where you stand.
Free Environment drillHow to study it
- Learn CDC’s dialysis precautions as a set: gloves at the station, hand hygiene between stations, items taken to a station are discarded, dedicated or disinfected, and HBsAg-positive patients dialyze in isolation with dedicated equipment.
- Memorize RACE and PASS for fires, and the steps of an emergency disconnect.
- Take the infection control drill until you score 90% or better; these are learnable points.
Common questions
How many environment questions are on the CCHT?
NNCC’s blueprint puts Environment at 13–17% of the test, which is 19 to 25 of the 150 questions.
Is hepatitis B isolation on the CCHT exam?
NNCC’s environment activities include following infection control precautions such as isolation and vaccinations. Hepatitis B isolation and testing follow CDC’s recommendations for hemodialysis units.
150 questions across all four areas in 3 hours, with a score for Environment so you know where you stand.
Free Environment drillThe other CCHT areas
Sources
- NNCC: Certified Clinical Hemodialysis Technician (CCHT): eligibility, exam length, passing score, fees, references
- NNCC: CCHT Test Blueprint (ideal distribution of 150 items)
- NNCC: CCHT Weights for Blueprint Categories and Activities by Blueprint Area
- NNCC: How the CCHT Examination is Developed (pilot questions, passing score)
- NNCC: Certification Examination Application booklet (revised 7/2026): PSI testing, 90-day window, results, reapplication, recertification
- NNCC: 2025–2026 Annual Report (CCHT exams administered in 2025)
- CMS ESRD Conditions for Coverage, 42 CFR 494.140(e): patient care dialysis technician qualifications
- BONENT: Eligibility and fees (CHT certification)
Original practice questions for exam preparation, written to the NNCC CCHT test blueprint and activity statements, not NNCC exam questions. Independent practice, not affiliated with or endorsed by the Nephrology Nursing Certification Commission (NNCC), C-NET or PSI. CCHT is an NNCC certification.