CCHT Environment Practice Test 2026 Questions Answers

Last Updated on May 13, 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) After mopping a bleach spill, the mop head should be

A) rinsed, then placed in designated disinfectant bin

B) reused without rinsing

C) thrown in regular trash dry

D) stored wet in closet

2 / 50

2) Which PPE item is REQUIRED during dialyzer reprocessing?

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

B) Lead apron

C) Hairnet only

D) Shoe covers only

3 / 50

3) A patient with known MRSA should be seated

A) beside immune patients

B) in staff lounge

C) anywhere in the row

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

4 / 50

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

A) bare hands for better grip

B) environmental services only

C) a clean-gloved coworker outside the room

D) the same person holding first bag

5 / 50

5) The correct order for removing PPE is typically

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

B) mask → gown → gloves

C) gown → mask → gloves

D) face shield → mask → gloves → gown

6 / 50

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

A) shut down all dialysis machines immediately without assessing

B) notify supervisor and investigate for leaks

C) ignore; odor is normal

D) open all acid jugs

7 / 50

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

A) wash area with soap and water

B) remove gloves next shift

C) complete incident report only

D) apply bandage without washing

8 / 50

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

A) a dedicated, leak-proof, labeled container

B) regular trash bags

C) an open wire basket

D) a linen hamper

9 / 50

9) Before cleaning a blood spill, staff must don

A) gloves and eye/face protection

B) shoe covers only

C) no PPE if spill is small

D) surgical cap only

10 / 50

10) 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

11 / 50

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

A) prevent blood exposure to environment

B) shorten treatment

C) lower noise level

D) save tubing for reuse

12 / 50

12) Emergency eyewash stations must be checked

A) monthly if time permits

B) once per year

C) only after an incident

D) weekly per facility policy

13 / 50

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

A) drink water

B) be moved to fresh air

C) take deep breaths of the chemical

D) lie flat in same area

14 / 50

14) Vaccination considered MANDATORY for dialysis staff is

A) Hepatitis B series

B) Yellow fever

C) Smallpox

D) Rabies

15 / 50

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

A) on the floor

B) between knee and shoulder height

C) behind heavy boxes

D) above head level

16 / 50

16) Chemical Safety Data Sheets (SDS) must be

A) sent home with patients

B) discarded after 30 days

C) locked in manager’s office

D) readily accessible to all staff at all times

17 / 50

17) Routine surface disinfection between patients helps primarily to

A) increase room humidity

B) save on deep-cleaning costs

C) break the chain of infection transmission

D) polish equipment

18 / 50

18) Proper disposal for used PPE contaminated with blood is

A) regular trash

B) sharps container

C) recycle bin

D) red biohazard bag

19 / 50

19) Sharps containers should be replaced when they are

A) emptied each week regardless of level

B) completely full to the top

C) ¾ full

D) half full

20 / 50

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

A) type with one finger

B) keep wrists straight and elbows at 90°

C) rest forearms on hard desk edges

D) stand hunched over the keyboard

21 / 50

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

A) twist torso while pulling

B) yank upward quickly

C) unlock mechanism before lifting

D) reach across patient

22 / 50

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

A) 5 minutes

B) 1 minute

C) 30 seconds

D) 15 minutes

23 / 50

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

A) open-toe sandals

B) cloth slippers

C) high-heeled boots

D) closed-toe, non-skid shoes

24 / 50

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

A) Soap and water for ≥20 seconds

B) Gloved hands only

C) Antiseptic wipes

D) Alcohol-based rub

25 / 50

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

A) stay seated and protect head/neck

B) pull fire alarm

C) run for the exit

D) disconnect themselves

26 / 50

26) 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

27 / 50

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

A) hug with one arm

B) carry at shoulder height

C) drag along the floor

D) use a rolling cart rather than carrying by hand

28 / 50

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

A) tap water

B) EPA-registered disinfectant

C) vinegar solution

D) plain alcohol

29 / 50

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

A) store wheelchairs in front of the doors

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

C) place empty dialysate boxes in the hall temporarily

D) mark exits with yellow tape only

30 / 50

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

A) 12 in (30 cm)

B) 36 in (91 cm)

C) 24 in (61 cm)

D) 30 in (76 cm)

31 / 50

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

A) Chemical hygiene

B) Unobstructed access to emergency equipment

C) Proper body mechanics

D) Standard precautions

32 / 50

32) To prevent trip hazards, electrical cords should be

A) coiled loosely on floor

B) secured and kept out of walkways

C) run across aisles

D) hidden under rugs

33 / 50

33) A splash to the eyes with dialysate requires

A) notifying biomedical only

B) applying antibiotic ointment

C) immediate flush at eyewash station for ≥15 minutes

D) closing eyes tightly and waiting

34 / 50

34) 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

35 / 50

35) Each chemical container must include

A) a legible manufacturer label with hazard pictograms

B) price stickers

C) handwritten abbreviations only

D) patient ID

36 / 50

36) Which practice prevents back injury during patient repositioning?

A) Lifting alone regardless of weight

B) Reaching over bed rails with arms extended

C) Keeping patient close to body and using slide sheet

D) Stopping midway to adjust grip

37 / 50

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

A) finish current saline return

B) silence all machine alarms

C) remove patients from immediate danger

D) search for the fire source

38 / 50

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

A) plain water only

B) extra bleach solution

C) baking soda solution if facility protocol allows

D) alcohol spray

39 / 50

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

A) removed or swung aside first

B) used as leverage points

C) taped to floor

D) left in place for speed

40 / 50

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

A) alcohol swabs only

B) dry paper towels for 30 minutes, then removed

C) coffee filters

D) absorbent towels soaked in bleach

41 / 50

41) An HBsAg-positive patient must be dialyzed

A) on a dedicated machine in an isolation area

B) first shift each morning

C) next to another hepatitis B-positive patient only

D) on any available machine after wipe-down

42 / 50

42) Gloves should be changed

A) after lunch break

B) between every patient contact

C) only when torn

D) once per hour

43 / 50

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

A) Quaternary ammonium wipes

B) Isopropyl alcohol

C) Ammonia-based cleaner

D) Hydrogen peroxide

44 / 50

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

A) 30 seconds

B) 1 minute

C) 3 minutes

D) 15 minutes

45 / 50

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

A) Influenza

B) Cholera

C) Typhoid

D) Varicella

46 / 50

46) 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) open dialysate lines to air

D) mix bleach and ammonia for extra strength

47 / 50

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

A) 5 mL bleach in 500 mL water

B) 10 mL bleach in 990 mL water

C) 1 mL bleach in 10 mL water

D) 50 mL bleach in 50 mL water

48 / 50

48) Food and drink in the treatment area are

A) prohibited to avoid contamination

B) stored under dialysis machines

C) mandatory for diabetic patients

D) allowed for staff only

49 / 50

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

A) continue barehanded

B) tape the tear and keep working

C) perform hand hygiene and don new gloves

D) ask another technician to finish

50 / 50

50) The CDC recommends alcohol hand rub contain at least

A) 60 % alcohol

B) 40 % alcohol

C) 20 % alcohol

D) 30 % alcohol

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