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) Chemical Safety Data Sheets (SDS) must be

A) locked in manager’s office

B) discarded after 30 days

C) readily accessible to all staff at all times

D) sent home with patients

2 / 50

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

A) twist while lifting for leverage

B) keep back straight and lift with legs

C) bend at the waist

D) hold box away from the body

3 / 50

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

A) vinegar solution

B) plain alcohol

C) EPA-registered disinfectant

D) tap water

4 / 50

4) Each chemical container must include

A) price stickers

B) handwritten abbreviations only

C) a legible manufacturer label with hazard pictograms

D) patient ID

5 / 50

5) Emergency eyewash stations must be checked

A) once per year

B) only after an incident

C) monthly if time permits

D) weekly per facility policy

6 / 50

6) 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)

7 / 50

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

A) place empty dialysate boxes in the hall temporarily

B) store wheelchairs in front of the doors

C) mark exits with yellow tape only

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

8 / 50

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

A) reduce noise in unit

B) comply with dress code

C) keep staff warm

D) prevent cross-contamination via splashes

9 / 50

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

A) carry at shoulder height

B) use a rolling cart rather than carrying by hand

C) hug with one arm

D) drag along the floor

10 / 50

10) Sharps containers should be replaced when they are

A) emptied each week regardless of level

B) half full

C) completely full to the top

D) ¾ full

11 / 50

11) A splash to the eyes with dialysate requires

A) applying antibiotic ointment

B) immediate flush at eyewash station for ≥15 minutes

C) notifying biomedical only

D) closing eyes tightly and waiting

12 / 50

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

A) lower noise level

B) save tubing for reuse

C) shorten treatment

D) prevent blood exposure to environment

13 / 50

13) A patient with known MRSA should be seated

A) in staff lounge

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

C) beside immune patients

D) anywhere in the row

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) Proper disposal for used PPE contaminated with blood is

A) red biohazard bag

B) sharps container

C) recycle bin

D) regular trash

16 / 50

16) 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

17 / 50

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

A) bare hands for better grip

B) environmental services only

C) the same person holding first bag

D) a clean-gloved coworker outside the room

18 / 50

18) Before cleaning a blood spill, staff must don

A) no PPE if spill is small

B) gloves and eye/face protection

C) surgical cap only

D) shoe covers only

19 / 50

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

A) open all acid jugs

B) shut down all dialysis machines immediately without assessing

C) ignore; odor is normal

D) notify supervisor and investigate for leaks

20 / 50

20) Vaccination considered MANDATORY for dialysis staff is

A) Rabies

B) Smallpox

C) Hepatitis B series

D) Yellow fever

21 / 50

21) 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) first shift each morning

D) on a dedicated machine in an isolation area

22 / 50

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

A) rest forearms on hard desk edges

B) stand hunched over the keyboard

C) keep wrists straight and elbows at 90°

D) type with one finger

23 / 50

23) Which practice prevents back injury during patient repositioning?

A) Lifting alone regardless of weight

B) Reaching over bed rails with arms extended

C) Stopping midway to adjust grip

D) Keeping patient close to body and using slide sheet

24 / 50

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

A) 30 seconds

B) 3 minutes

C) 15 minutes

D) 1 minute

25 / 50

25) Routine surface disinfection between patients helps primarily to

A) increase room humidity

B) break the chain of infection transmission

C) polish equipment

D) save on deep-cleaning costs

26 / 50

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

A) search for the fire source

B) silence all machine alarms

C) remove patients from immediate danger

D) finish current saline return

27 / 50

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

A) between knee and shoulder height

B) above head level

C) behind heavy boxes

D) on the floor

28 / 50

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

A) continue barehanded

B) perform hand hygiene and don new gloves

C) ask another technician to finish

D) tape the tear and keep working

29 / 50

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

A) 15 minutes

B) 5 minutes

C) 30 seconds

D) 1 minute

30 / 50

30) 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

31 / 50

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

A) pull fire alarm

B) disconnect themselves

C) stay seated and protect head/neck

D) run for the exit

32 / 50

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

A) Hydrogen peroxide

B) Ammonia-based cleaner

C) Isopropyl alcohol

D) Quaternary ammonium wipes

33 / 50

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

A) apply bandage without washing

B) complete incident report only

C) remove gloves next shift

D) wash area with soap and water

34 / 50

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

A) 5 mL bleach in 500 mL water

B) 1 mL bleach in 10 mL water

C) 10 mL bleach in 990 mL water

D) 50 mL bleach in 50 mL water

35 / 50

35) To prevent trip hazards, electrical cords should be

A) secured and kept out of walkways

B) run across aisles

C) hidden under rugs

D) coiled loosely on floor

36 / 50

36) Gloves should be changed

A) once per hour

B) after lunch break

C) only when torn

D) between every patient contact

37 / 50

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

A) absorbent towels soaked in bleach

B) coffee filters

C) alcohol swabs only

D) dry paper towels for 30 minutes, then removed

38 / 50

38) The correct order for removing PPE is typically

A) mask → gown → gloves

B) gown → mask → gloves

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

D) face shield → mask → gloves → gown

39 / 50

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

A) Antiseptic wipes

B) Alcohol-based rub

C) Soap and water for ≥20 seconds

D) Gloved hands only

40 / 50

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

A) plain water only

B) baking soda solution if facility protocol allows

C) alcohol spray

D) extra bleach solution

41 / 50

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

A) cross at ankles

B) rest flat on floor

C) dangle freely

D) press on chair ring only

42 / 50

42) The CDC recommends alcohol hand rub contain at least

A) 40 % alcohol

B) 60 % alcohol

C) 20 % alcohol

D) 30 % alcohol

43 / 50

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

A) used as leverage points

B) left in place for speed

C) taped to floor

D) removed or swung aside first

44 / 50

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

A) an open wire basket

B) a dedicated, leak-proof, labeled container

C) a linen hamper

D) regular trash bags

45 / 50

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

A) spray disinfectant on the patient

B) open dialysate lines to air

C) mix bleach and ammonia for extra strength

D) remove clean supplies from the area

46 / 50

46) Which PPE item is REQUIRED during dialyzer reprocessing?

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

B) Hairnet only

C) Lead apron

D) Shoe covers only

47 / 50

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

A) Typhoid

B) Cholera

C) Influenza

D) Varicella

48 / 50

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

A) yank upward quickly

B) reach across patient

C) unlock mechanism before lifting

D) twist torso while pulling

49 / 50

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

A) Unobstructed access to emergency equipment

B) Proper body mechanics

C) Standard precautions

D) Chemical hygiene

50 / 50

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

A) stored wet in closet

B) reused without rinsing

C) thrown in regular trash dry

D) rinsed, then placed in designated disinfectant bin

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