CCHT Environment Practice Test 2025 Questions Answers

Last Updated on June 14, 2025

CCHT Environment Practice Test 2025 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 to 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) Post-treatment chair-cleaning must include wiping armrests with

A) vinegar solution

B) EPA-registered disinfectant

C) tap water

D) plain alcohol

2 / 50

2) Vaccination considered MANDATORY for dialysis staff is

A) Yellow fever

B) Rabies

C) Hepatitis B series

D) Smallpox

3 / 50

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

A) left in place for speed

B) used as leverage points

C) taped to floor

D) removed or swung aside first

4 / 50

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

A) 50 mL bleach in 50 mL water

B) 10 mL bleach in 990 mL water

C) 5 mL bleach in 500 mL water

D) 1 mL bleach in 10 mL water

5 / 50

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

A) wash area with soap and water

B) complete incident report only

C) apply bandage without washing

D) remove gloves next shift

6 / 50

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

A) hold box away from the body

B) keep back straight and lift with legs

C) bend at the waist

D) twist while lifting for leverage

7 / 50

7) Before cleaning a blood spill, staff must don

A) gloves and eye/face protection

B) surgical cap only

C) no PPE if spill is small

D) shoe covers only

8 / 50

8) Chemical Safety Data Sheets (SDS) must be

A) discarded after 30 days

B) readily accessible to all staff at all times

C) sent home with patients

D) locked in manager’s office

9 / 50

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

A) baking soda solution if facility protocol allows

B) extra bleach solution

C) plain water only

D) alcohol spray

10 / 50

10) To prevent trip hazards, electrical cords should be

A) secured and kept out of walkways

B) run across aisles

C) coiled loosely on floor

D) hidden under rugs

11 / 50

11) An HBsAg-positive patient must be dialyzed

A) next to another hepatitis B-positive patient only

B) on any available machine after wipe-down

C) on a dedicated machine in an isolation area

D) first shift each morning

12 / 50

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

A) keep staff warm

B) prevent cross-contamination via splashes

C) comply with dress code

D) reduce noise in unit

13 / 50

13) Sharps containers should be replaced when they are

A) half full

B) emptied each week regardless of level

C) completely full to the top

D) ¾ full

14 / 50

14) 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) above head level

D) behind heavy boxes

15 / 50

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

A) Influenza

B) Typhoid

C) Varicella

D) Cholera

16 / 50

16) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Hairnet only

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

C) Shoe covers only

D) Lead apron

17 / 50

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

A) keep wrists straight and elbows at 90°

B) rest forearms on hard desk edges

C) stand hunched over the keyboard

D) type with one finger

18 / 50

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

A) take deep breaths of the chemical

B) lie flat in same area

C) be moved to fresh air

D) drink water

19 / 50

19) Gloves should be changed

A) between every patient contact

B) only when torn

C) after lunch break

D) once per hour

20 / 50

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

A) perform hand hygiene and don new gloves

B) ask another technician to finish

C) continue barehanded

D) tape the tear and keep working

21 / 50

21) 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

22 / 50

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

A) Hydrogen peroxide

B) Isopropyl alcohol

C) Ammonia-based cleaner

D) Quaternary ammonium wipes

23 / 50

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

A) mix bleach and ammonia for extra strength

B) remove clean supplies from the area

C) open dialysate lines to air

D) spray disinfectant on the patient

24 / 50

24) The correct order for removing PPE is typically

A) mask → gown → gloves

B) face shield → mask → gloves → gown

C) gown → mask → gloves

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

25 / 50

25) 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

26 / 50

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

A) coffee filters

B) absorbent towels soaked in bleach

C) alcohol swabs only

D) dry paper towels for 30 minutes, then removed

27 / 50

27) Each chemical container must include

A) handwritten abbreviations only

B) price stickers

C) a legible manufacturer label with hazard pictograms

D) patient ID

28 / 50

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

A) disconnect themselves

B) run for the exit

C) pull fire alarm

D) stay seated and protect head/neck

29 / 50

29) 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

30 / 50

30) A patient with known MRSA should be seated

A) beside immune patients

B) anywhere in the row

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

D) in staff lounge

31 / 50

31) 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

32 / 50

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

A) 36 in (91 cm)

B) 24 in (61 cm)

C) 12 in (30 cm)

D) 30 in (76 cm)

33 / 50

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

A) hug with one arm

B) carry at shoulder height

C) use a rolling cart rather than carrying by hand

D) drag along the floor

34 / 50

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

A) open-toe sandals

B) cloth slippers

C) closed-toe, non-skid shoes

D) high-heeled boots

35 / 50

35) A splash to the eyes with dialysate requires

A) notifying biomedical only

B) applying antibiotic ointment

C) closing eyes tightly and waiting

D) immediate flush at eyewash station for ≥15 minutes

36 / 50

36) Food and drink in the treatment area are

A) prohibited to avoid contamination

B) mandatory for diabetic patients

C) stored under dialysis machines

D) allowed for staff only

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) Routine surface disinfection between patients helps primarily to

A) increase room humidity

B) save on deep-cleaning costs

C) polish equipment

D) break the chain of infection transmission

39 / 50

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

A) press on chair ring only

B) rest flat on floor

C) dangle freely

D) cross at ankles

40 / 50

40) The CDC recommends alcohol hand rub contain at least

A) 40 % alcohol

B) 20 % alcohol

C) 30 % alcohol

D) 60 % alcohol

41 / 50

41) 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

42 / 50

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

A) open all acid jugs

B) notify supervisor and investigate for leaks

C) shut down all dialysis machines immediately without assessing

D) ignore; odor is normal

43 / 50

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

A) finish current saline return

B) search for the fire source

C) silence all machine alarms

D) remove patients from immediate danger

44 / 50

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

A) lower noise level

B) prevent blood exposure to environment

C) save tubing for reuse

D) shorten treatment

45 / 50

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

A) store wheelchairs in front of the doors

B) mark exits with yellow tape only

C) place empty dialysate boxes in the hall temporarily

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

46 / 50

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

A) thrown in regular trash dry

B) stored wet in closet

C) reused without rinsing

D) rinsed, then placed in designated disinfectant bin

47 / 50

47) 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

48 / 50

48) Which practice prevents back injury during patient repositioning?

A) Reaching over bed rails with arms extended

B) Stopping midway to adjust grip

C) Keeping patient close to body and using slide sheet

D) Lifting alone regardless of weight

49 / 50

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

A) Gloved hands only

B) Antiseptic wipes

C) Soap and water for ≥20 seconds

D) Alcohol-based rub

50 / 50

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

A) environmental services only

B) the same person holding first bag

C) a clean-gloved coworker outside the room

D) bare hands for better grip

Your score is

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