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

A) between knee and shoulder height

B) on the floor

C) above head level

D) behind heavy boxes

2 / 50

2) Each chemical container must include

A) patient ID

B) a legible manufacturer label with hazard pictograms

C) price stickers

D) handwritten abbreviations only

3 / 50

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

A) keep staff warm

B) prevent cross-contamination via splashes

C) reduce noise in unit

D) comply with dress code

4 / 50

4) Emergency eyewash stations must be checked

A) weekly per facility policy

B) only after an incident

C) once per year

D) monthly if time permits

5 / 50

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

A) remove clean supplies from the area

B) mix bleach and ammonia for extra strength

C) spray disinfectant on the patient

D) open dialysate lines to air

6 / 50

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

A) remove gloves next shift

B) apply bandage without washing

C) wash area with soap and water

D) complete incident report only

7 / 50

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

A) Isopropyl alcohol

B) Quaternary ammonium wipes

C) Ammonia-based cleaner

D) Hydrogen peroxide

8 / 50

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

A) be moved to fresh air

B) drink water

C) take deep breaths of the chemical

D) lie flat in same area

9 / 50

9) 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

10 / 50

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

A) search for the fire source

B) finish current saline return

C) remove patients from immediate danger

D) silence all machine alarms

11 / 50

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

A) regular trash bags

B) a dedicated, leak-proof, labeled container

C) a linen hamper

D) an open wire basket

12 / 50

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

A) Gloved hands only

B) Alcohol-based rub

C) Antiseptic wipes

D) Soap and water for ≥20 seconds

13 / 50

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

A) tape the tear and keep working

B) ask another technician to finish

C) perform hand hygiene and don new gloves

D) continue barehanded

14 / 50

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

A) open-toe sandals

B) high-heeled boots

C) cloth slippers

D) closed-toe, non-skid shoes

15 / 50

15) Before cleaning a blood spill, staff must don

A) shoe covers only

B) no PPE if spill is small

C) gloves and eye/face protection

D) surgical cap only

16 / 50

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

A) use a rolling cart rather than carrying by hand

B) drag along the floor

C) hug with one arm

D) carry at shoulder height

17 / 50

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

A) 24 in (61 cm)

B) 36 in (91 cm)

C) 30 in (76 cm)

D) 12 in (30 cm)

18 / 50

18) To prevent trip hazards, electrical cords should be

A) hidden under rugs

B) secured and kept out of walkways

C) coiled loosely on floor

D) run across aisles

19 / 50

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

A) extra bleach solution

B) baking soda solution if facility protocol allows

C) alcohol spray

D) plain water only

20 / 50

20) 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

21 / 50

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

A) prevent blood exposure to environment

B) lower noise level

C) shorten treatment

D) save tubing for reuse

22 / 50

22) A splash to the eyes with dialysate requires

A) applying antibiotic ointment

B) closing eyes tightly and waiting

C) immediate flush at eyewash station for ≥15 minutes

D) notifying biomedical only

23 / 50

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

A) 5 mL bleach in 500 mL water

B) 50 mL bleach in 50 mL water

C) 10 mL bleach in 990 mL water

D) 1 mL bleach in 10 mL water

24 / 50

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

A) mark exits with yellow tape only

B) store wheelchairs in front of the doors

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

D) place empty dialysate boxes in the hall temporarily

25 / 50

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

A) Unobstructed access to emergency equipment

B) Standard precautions

C) Proper body mechanics

D) Chemical hygiene

26 / 50

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

A) stand hunched over the keyboard

B) rest forearms on hard desk edges

C) type with one finger

D) keep wrists straight and elbows at 90°

27 / 50

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

A) run for the exit

B) pull fire alarm

C) stay seated and protect head/neck

D) disconnect themselves

28 / 50

28) 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) twist while lifting for leverage

D) bend at the waist

29 / 50

29) An HBsAg-positive patient must be dialyzed

A) first shift each morning

B) on any available machine after wipe-down

C) on a dedicated machine in an isolation area

D) next to another hepatitis B-positive patient only

30 / 50

30) Routine surface disinfection between patients helps primarily to

A) break the chain of infection transmission

B) polish equipment

C) save on deep-cleaning costs

D) increase room humidity

31 / 50

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

A) notify supervisor and investigate for leaks

B) ignore; odor is normal

C) open all acid jugs

D) shut down all dialysis machines immediately without assessing

32 / 50

32) Proper disposal for used PPE contaminated with blood is

A) regular trash

B) recycle bin

C) sharps container

D) red biohazard bag

33 / 50

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

A) left in place for speed

B) taped to floor

C) removed or swung aside first

D) used as leverage points

34 / 50

34) Which practice prevents back injury during patient repositioning?

A) Reaching over bed rails with arms extended

B) Lifting alone regardless of weight

C) Keeping patient close to body and using slide sheet

D) Stopping midway to adjust grip

35 / 50

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

A) EPA-registered disinfectant

B) tap water

C) vinegar solution

D) plain alcohol

36 / 50

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

A) rinsed, then placed in designated disinfectant bin

B) reused without rinsing

C) stored wet in closet

D) thrown in regular trash dry

37 / 50

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

A) Influenza

B) Varicella

C) Typhoid

D) Cholera

38 / 50

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

A) 30 seconds

B) 15 minutes

C) 1 minute

D) 5 minutes

39 / 50

39) The correct order for removing PPE is typically

A) gown → mask → gloves

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

C) mask → gown → gloves

D) face shield → mask → gloves → gown

40 / 50

40) The CDC recommends alcohol hand rub contain at least

A) 30 % alcohol

B) 40 % alcohol

C) 60 % alcohol

D) 20 % alcohol

41 / 50

41) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Hairnet only

B) Shoe covers only

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

D) Lead apron

42 / 50

42) Gloves should be changed

A) only when torn

B) once per hour

C) between every patient contact

D) after lunch break

43 / 50

43) Sharps containers should be replaced when they are

A) half full

B) completely full to the top

C) ¾ full

D) emptied each week regardless of level

44 / 50

44) Food and drink in the treatment area are

A) prohibited to avoid contamination

B) allowed for staff only

C) mandatory for diabetic patients

D) stored under dialysis machines

45 / 50

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

A) 3 minutes

B) 30 seconds

C) 1 minute

D) 15 minutes

46 / 50

46) A patient with known MRSA should be seated

A) anywhere in the row

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

C) in staff lounge

D) beside immune patients

47 / 50

47) 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

48 / 50

48) 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

49 / 50

49) Chemical Safety Data Sheets (SDS) must be

A) readily accessible to all staff at all times

B) locked in manager’s office

C) sent home with patients

D) discarded after 30 days

50 / 50

50) Vaccination considered MANDATORY for dialysis staff is

A) Smallpox

B) Yellow fever

C) Hepatitis B series

D) Rabies

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