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) Proper disposal for used PPE contaminated with blood is

A) recycle bin

B) red biohazard bag

C) regular trash

D) sharps container

2 / 50

2) Sharps containers should be replaced when they are

A) emptied each week regardless of level

B) ¾ full

C) completely full to the top

D) half full

3 / 50

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

A) used as leverage points

B) removed or swung aside first

C) left in place for speed

D) taped to floor

4 / 50

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

A) thrown in regular trash dry

B) rinsed, then placed in designated disinfectant bin

C) stored wet in closet

D) reused without rinsing

5 / 50

5) 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

6 / 50

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

A) Chemical hygiene

B) Standard precautions

C) Proper body mechanics

D) Unobstructed access to emergency equipment

7 / 50

7) Chemical Safety Data Sheets (SDS) must be

A) readily accessible to all staff at all times

B) discarded after 30 days

C) sent home with patients

D) locked in manager’s office

8 / 50

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

A) Varicella

B) Cholera

C) Influenza

D) Typhoid

9 / 50

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

A) regular trash bags

B) an open wire basket

C) a linen hamper

D) a dedicated, leak-proof, labeled container

10 / 50

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

A) environmental services only

B) a clean-gloved coworker outside the room

C) the same person holding first bag

D) bare hands for better grip

11 / 50

11) 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) mark exits with yellow tape only

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

12 / 50

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

A) plain alcohol

B) tap water

C) EPA-registered disinfectant

D) vinegar solution

13 / 50

13) 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

14 / 50

14) 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

15 / 50

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

A) search for the fire source

B) remove patients from immediate danger

C) finish current saline return

D) silence all machine alarms

16 / 50

16) 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

17 / 50

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

A) high-heeled boots

B) cloth slippers

C) open-toe sandals

D) closed-toe, non-skid shoes

18 / 50

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

A) shut down all dialysis machines immediately without assessing

B) ignore; odor is normal

C) open all acid jugs

D) notify supervisor and investigate for leaks

19 / 50

19) Routine surface disinfection between patients helps primarily to

A) polish equipment

B) increase room humidity

C) save on deep-cleaning costs

D) break the chain of infection transmission

20 / 50

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

A) be moved to fresh air

B) lie flat in same area

C) take deep breaths of the chemical

D) drink water

21 / 50

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

A) perform hand hygiene and don new gloves

B) continue barehanded

C) ask another technician to finish

D) tape the tear and keep working

22 / 50

22) 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

23 / 50

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

A) rest forearms on hard desk edges

B) type with one finger

C) keep wrists straight and elbows at 90°

D) stand hunched over the keyboard

24 / 50

24) The correct order for removing PPE is typically

A) face shield → mask → gloves → gown

B) mask → gown → gloves

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

D) gown → mask → gloves

25 / 50

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

A) carry at shoulder height

B) hug with one arm

C) drag along the floor

D) use a rolling cart rather than carrying by hand

26 / 50

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

A) remove gloves next shift

B) wash area with soap and water

C) apply bandage without washing

D) complete incident report only

27 / 50

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

A) on the floor

B) behind heavy boxes

C) above head level

D) between knee and shoulder height

28 / 50

28) 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

29 / 50

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

A) twist torso while pulling

B) reach across patient

C) yank upward quickly

D) unlock mechanism before lifting

30 / 50

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

A) twist while lifting for leverage

B) hold box away from the body

C) keep back straight and lift with legs

D) bend at the waist

31 / 50

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

A) rest flat on floor

B) press on chair ring only

C) cross at ankles

D) dangle freely

32 / 50

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

A) 1 minute

B) 5 minutes

C) 15 minutes

D) 30 seconds

33 / 50

33) The CDC recommends alcohol hand rub contain at least

A) 30 % alcohol

B) 40 % alcohol

C) 60 % alcohol

D) 20 % alcohol

34 / 50

34) Emergency eyewash stations must be checked

A) once per year

B) weekly per facility policy

C) monthly if time permits

D) only after an incident

35 / 50

35) Vaccination considered MANDATORY for dialysis staff is

A) Hepatitis B series

B) Yellow fever

C) Smallpox

D) Rabies

36 / 50

36) Each chemical container must include

A) a legible manufacturer label with hazard pictograms

B) price stickers

C) patient ID

D) handwritten abbreviations only

37 / 50

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

A) Ammonia-based cleaner

B) Quaternary ammonium wipes

C) Isopropyl alcohol

D) Hydrogen peroxide

38 / 50

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

A) 30 in (76 cm)

B) 24 in (61 cm)

C) 36 in (91 cm)

D) 12 in (30 cm)

39 / 50

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

A) comply with dress code

B) keep staff warm

C) reduce noise in unit

D) prevent cross-contamination via splashes

40 / 50

40) Which practice prevents back injury during patient repositioning?

A) Reaching over bed rails with arms extended

B) Keeping patient close to body and using slide sheet

C) Stopping midway to adjust grip

D) Lifting alone regardless of weight

41 / 50

41) Gloves should be changed

A) once per hour

B) after lunch break

C) only when torn

D) between every patient contact

42 / 50

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

A) lower noise level

B) prevent blood exposure to environment

C) shorten treatment

D) save tubing for reuse

43 / 50

43) A patient with known MRSA should be seated

A) in staff lounge

B) beside immune patients

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

D) anywhere in the row

44 / 50

44) 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) 50 mL bleach in 50 mL water

D) 1 mL bleach in 10 mL water

45 / 50

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

A) disconnect themselves

B) run for the exit

C) stay seated and protect head/neck

D) pull fire alarm

46 / 50

46) 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

47 / 50

47) 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

48 / 50

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

A) 30 seconds

B) 3 minutes

C) 1 minute

D) 15 minutes

49 / 50

49) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Lead apron

B) Hairnet only

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

D) Shoe covers only

50 / 50

50) 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

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