CCHT Environment Practice Test 2026 Questions Answers

Last Updated on June 30, 2026

CCHT Environment Practice Test 2026 Questions Answers Quiz: Try our free Nephrology Nursing Certification Commission (NNCC) Certified Clinical Hemodialysis Technician (CCHT) Technical Practice Tests. In the actual test, this part consists of 19-25 multiple-choice questions, which is approximately 13–17% of the total.

Questions in this area deal with infection control and other safety issues in the dialysis setting. These issues include chemical spills, transferring patients from a wheelchair to a treatment chair, and using correct body mechanics to prevent injury. The Environment section accounts for 15% of the test content. Examples of the kinds of technician activities tested in the Environment area include:

1. Using dialysis/standard precautions.
2. Using chemicals to disinfect environmental surfaces.
3. Following infection control precautions, including isolation, vaccinations, and the use of supplies.
4. Using proper body mechanics.
5. Maintaining an unobstructed emergency exit pathway

CCHT Environment Practice Test

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CCHT Environment Practice Test

1 / 50

1) Before wiping a dialysis station with disinfectant, the technician should first

A) remove clean supplies from the area

B) spray disinfectant on the patient

C) mix bleach and ammonia for extra strength

D) open dialysate lines to air

2 / 50

2) When adjusting an over-bed table height, to avoid strain the technician should

A) yank upward quickly

B) unlock mechanism before lifting

C) reach across patient

D) twist torso while pulling

3 / 50

3) The correct order for removing PPE is typically

A) mask → gown → gloves

B) gown → mask → gloves

C) face shield → mask → gloves → gown

D) gloves → goggles/face shield → gown → mask

4 / 50

4) The safest way to move a full dialysate jug is

A) use a rolling cart rather than carrying by hand

B) hug with one arm

C) drag along the floor

D) carry at shoulder height

5 / 50

5) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Shoe covers only

B) Hairnet only

C) Lead apron

D) Gloves, gown, face shield or mask with goggles

6 / 50

6) Which disinfectant CANNOT be mixed with bleach due to toxic fumes?

A) Quaternary ammonium wipes

B) Isopropyl alcohol

C) Hydrogen peroxide

D) Ammonia-based cleaner

7 / 50

7) Gloves should be changed

A) once per hour

B) after lunch break

C) only when torn

D) between every patient contact

8 / 50

8) After exposure to blood, the FIRST action is to

A) remove gloves next shift

B) complete incident report only

C) wash area with soap and water

D) apply bandage without washing

9 / 50

9) Which hand-hygiene method must be used when hands are visibly soiled?

A) Alcohol-based rub

B) Gloved hands only

C) Antiseptic wipes

D) Soap and water for ≥20 seconds

10 / 50

10) Chemical Safety Data Sheets (SDS) must be

A) readily accessible to all staff at all times

B) sent home with patients

C) locked in manager’s office

D) discarded after 30 days

11 / 50

11) Vaccination considered MANDATORY for dialysis staff is

A) Rabies

B) Yellow fever

C) Smallpox

D) Hepatitis B series

12 / 50

12) During a fire drill, the FIRST technician action is to

A) search for the fire source

B) silence all machine alarms

C) finish current saline return

D) remove patients from immediate danger

13 / 50

13) A patient with known MRSA should be seated

A) at least 6 ft (2 m) from other patients or per facility isolation policy

B) beside immune patients

C) anywhere in the row

D) in staff lounge

14 / 50

14) During an earthquake, the technician should instruct patients to

A) stay seated and protect head/neck

B) run for the exit

C) pull fire alarm

D) disconnect themselves

15 / 50

15) To prevent trip hazards, electrical cords should be

A) coiled loosely on floor

B) run across aisles

C) secured and kept out of walkways

D) hidden under rugs

16 / 50

16) An HBsAg-positive patient must be dialyzed

A) on a dedicated machine in an isolation area

B) on any available machine after wipe-down

C) first shift each morning

D) next to another hepatitis B-positive patient only

17 / 50

17) A cart blocking the fire extinguisher violates which safety principle?

A) Unobstructed access to emergency equipment

B) Proper body mechanics

C) Chemical hygiene

D) Standard precautions

18 / 50

18) The CDC recommends alcohol hand rub contain at least

A) 60 % alcohol

B) 20 % alcohol

C) 40 % alcohol

D) 30 % alcohol

19 / 50

19) The best way to ensure emergency exits remain clear is to

A) store wheelchairs in front of the doors

B) place empty dialysate boxes in the hall temporarily

C) keep carts and chairs at least 36 in (91 cm) away

D) mark exits with yellow tape only

20 / 50

20) A technician strains to reach supplies overhead. To prevent injury, supplies should be stored

A) above head level

B) behind heavy boxes

C) between knee and shoulder height

D) on the floor

21 / 50

21) When double-bagging infectious waste, the second bag should be held by

A) a clean-gloved coworker outside the room

B) bare hands for better grip

C) environmental services only

D) the same person holding first bag

22 / 50

22) In case of chemical inhalation, the victim should first

A) drink water

B) take deep breaths of the chemical

C) lie flat in same area

D) be moved to fresh air

23 / 50

23) Routine surface disinfection between patients helps primarily to

A) increase room humidity

B) polish equipment

C) break the chain of infection transmission

D) save on deep-cleaning costs

24 / 50

24) Ergonomic stool height should allow the technician’s feet to

A) rest flat on floor

B) cross at ankles

C) press on chair ring only

D) dangle freely

25 / 50

25) Food and drink in the treatment area are

A) stored under dialysis machines

B) mandatory for diabetic patients

C) allowed for staff only

D) prohibited to avoid contamination

26 / 50

26) For wheelchair-to-chair transfer, footrests should be

A) removed or swung aside first

B) taped to floor

C) used as leverage points

D) left in place for speed

27 / 50

27) The primary reason to cap and clamp bloodlines during patient transfer is to

A) lower noise level

B) save tubing for reuse

C) prevent blood exposure to environment

D) shorten treatment

28 / 50

28) Which practice prevents back injury during patient repositioning?

A) Stopping midway to adjust grip

B) Keeping patient close to body and using slide sheet

C) Lifting alone regardless of weight

D) Reaching over bed rails with arms extended

29 / 50

29) The primary reason gowns are changed between patients is to

A) prevent cross-contamination via splashes

B) comply with dress code

C) reduce noise in unit

D) keep staff warm

30 / 50

30) The eyewash station water flow must allow both eyes to be flushed simultaneously for

A) 15 minutes

B) 30 seconds

C) 3 minutes

D) 1 minute

31 / 50

31) Each chemical container must include

A) patient ID

B) a legible manufacturer label with hazard pictograms

C) handwritten abbreviations only

D) price stickers

32 / 50

32) When lifting a 25 kg dialysate box from the floor, the technician should

A) keep back straight and lift with legs

B) hold box away from the body

C) bend at the waist

D) twist while lifting for leverage

33 / 50

33) The correct ratio for preparing 1:100 bleach from 5.25 % stock is

A) 10 mL bleach in 990 mL water

B) 1 mL bleach in 10 mL water

C) 50 mL bleach in 50 mL water

D) 5 mL bleach in 500 mL water

34 / 50

34) After mopping a bleach spill, the mop head should be

A) thrown in regular trash dry

B) reused without rinsing

C) rinsed, then placed in designated disinfectant bin

D) stored wet in closet

35 / 50

35) Sharps containers should be replaced when they are

A) ¾ full

B) half full

C) completely full to the top

D) emptied each week regardless of level

36 / 50

36) Dialysis stations must have at least how many inches of clear space on each side for safe evacuation?

A) 24 in (61 cm)

B) 12 in (30 cm)

C) 30 in (76 cm)

D) 36 in (91 cm)

37 / 50

37) Proper disposal for used PPE contaminated with blood is

A) regular trash

B) red biohazard bag

C) sharps container

D) recycle bin

38 / 50

38) Proper footwear to reduce slip risk in dialysis units is

A) cloth slippers

B) open-toe sandals

C) closed-toe, non-skid shoes

D) high-heeled boots

39 / 50

39) The minimum contact time for a 1:100 bleach solution on external surfaces is typically

A) 5 minutes

B) 15 minutes

C) 30 seconds

D) 1 minute

40 / 50

40) A splash to the eyes with dialysate requires

A) immediate flush at eyewash station for ≥15 minutes

B) notifying biomedical only

C) closing eyes tightly and waiting

D) applying antibiotic ointment

41 / 50

41) A patient spills blood on the floor. The spill is covered with

A) alcohol swabs only

B) absorbent towels soaked in bleach

C) coffee filters

D) dry paper towels for 30 minutes, then removed

42 / 50

42) Which vaccine is STRONGLY encouraged annually for dialysis patients and staff?

A) Cholera

B) Influenza

C) Varicella

D) Typhoid

43 / 50

43) After removing torn gloves during a procedure, the technician should

A) continue barehanded

B) ask another technician to finish

C) perform hand hygiene and don new gloves

D) tape the tear and keep working

44 / 50

44) A technician smells chlorine near the water room. First response is to

A) ignore; odor is normal

B) shut down all dialysis machines immediately without assessing

C) notify supervisor and investigate for leaks

D) open all acid jugs

45 / 50

45) Used dialyzers awaiting reprocessing or disposal must be stored in

A) an open wire basket

B) a linen hamper

C) a dedicated, leak-proof, labeled container

D) regular trash bags

46 / 50

46) Before cleaning a blood spill, staff must don

A) gloves and eye/face protection

B) shoe covers only

C) surgical cap only

D) no PPE if spill is small

47 / 50

47) Spilled acid concentrate on the floor should be neutralized using

A) alcohol spray

B) plain water only

C) extra bleach solution

D) baking soda solution if facility protocol allows

48 / 50

48) Post-treatment chair-cleaning must include wiping armrests with

A) plain alcohol

B) EPA-registered disinfectant

C) tap water

D) vinegar solution

49 / 50

49) To reduce repetitive-strain injury while charting, the technician should

A) rest forearms on hard desk edges

B) stand hunched over the keyboard

C) type with one finger

D) keep wrists straight and elbows at 90°

50 / 50

50) Emergency eyewash stations must be checked

A) only after an incident

B) monthly if time permits

C) weekly per facility policy

D) once per year

Your score is

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