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) readily accessible to all staff at all times

B) locked in manager’s office

C) discarded after 30 days

D) sent home with patients

2 / 50

2) 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

3 / 50

3) 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

4 / 50

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

A) mix bleach and ammonia for extra strength

B) open dialysate lines to air

C) remove clean supplies from the area

D) spray disinfectant on the patient

5 / 50

5) An HBsAg-positive patient must be dialyzed

A) on a dedicated machine in an isolation area

B) on any available machine after wipe-down

C) first shift each morning

D) next to another hepatitis B-positive patient only

6 / 50

6) 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) beside immune patients

D) in staff lounge

7 / 50

7) Sharps containers should be replaced when they are

A) ¾ full

B) completely full to the top

C) half full

D) emptied each week regardless of level

8 / 50

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

A) press on chair ring only

B) rest flat on floor

C) cross at ankles

D) dangle freely

9 / 50

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

A) disconnect themselves

B) stay seated and protect head/neck

C) pull fire alarm

D) run for the exit

10 / 50

10) Each chemical container must include

A) price stickers

B) a legible manufacturer label with hazard pictograms

C) handwritten abbreviations only

D) patient ID

11 / 50

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

A) 1 mL bleach in 10 mL water

B) 5 mL bleach in 500 mL water

C) 10 mL bleach in 990 mL water

D) 50 mL bleach in 50 mL water

12 / 50

12) Emergency eyewash stations must be checked

A) once per year

B) weekly per facility policy

C) only after an incident

D) monthly if time permits

13 / 50

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

A) a clean-gloved coworker outside the room

B) bare hands for better grip

C) environmental services only

D) the same person holding first bag

14 / 50

14) Proper disposal for used PPE contaminated with blood is

A) regular trash

B) recycle bin

C) sharps container

D) red biohazard bag

15 / 50

15) Before cleaning a blood spill, staff must don

A) shoe covers only

B) gloves and eye/face protection

C) surgical cap only

D) no PPE if spill is small

16 / 50

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

A) coffee filters

B) dry paper towels for 30 minutes, then removed

C) absorbent towels soaked in bleach

D) alcohol swabs only

17 / 50

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

A) Ammonia-based cleaner

B) Isopropyl alcohol

C) Quaternary ammonium wipes

D) Hydrogen peroxide

18 / 50

18) 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

19 / 50

19) 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) carry at shoulder height

D) hug with one arm

20 / 50

20) Food and drink in the treatment area are

A) mandatory for diabetic patients

B) stored under dialysis machines

C) prohibited to avoid contamination

D) allowed for staff only

21 / 50

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

A) 36 in (91 cm)

B) 30 in (76 cm)

C) 24 in (61 cm)

D) 12 in (30 cm)

22 / 50

22) Routine surface disinfection between patients helps primarily to

A) break the chain of infection transmission

B) increase room humidity

C) polish equipment

D) save on deep-cleaning costs

23 / 50

23) 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

24 / 50

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

A) continue barehanded

B) ask another technician to finish

C) tape the tear and keep working

D) perform hand hygiene and don new gloves

25 / 50

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

A) an open wire basket

B) a linen hamper

C) regular trash bags

D) a dedicated, leak-proof, labeled container

26 / 50

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

A) reused without rinsing

B) thrown in regular trash dry

C) rinsed, then placed in designated disinfectant bin

D) stored wet in closet

27 / 50

27) 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

28 / 50

28) The correct order for removing PPE is typically

A) face shield → mask → gloves → gown

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

C) mask → gown → gloves

D) gown → mask → gloves

29 / 50

29) 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

30 / 50

30) The CDC recommends alcohol hand rub contain at least

A) 30 % alcohol

B) 40 % alcohol

C) 20 % alcohol

D) 60 % alcohol

31 / 50

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

A) 1 minute

B) 30 seconds

C) 15 minutes

D) 5 minutes

32 / 50

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

A) shorten treatment

B) save tubing for reuse

C) lower noise level

D) prevent blood exposure to environment

33 / 50

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

D) place empty dialysate boxes in the hall temporarily

34 / 50

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

A) yank upward quickly

B) reach across patient

C) twist torso while pulling

D) unlock mechanism before lifting

35 / 50

35) Vaccination considered MANDATORY for dialysis staff is

A) Smallpox

B) Hepatitis B series

C) Yellow fever

D) Rabies

36 / 50

36) A splash to the eyes with dialysate requires

A) applying antibiotic ointment

B) notifying biomedical only

C) closing eyes tightly and waiting

D) immediate flush at eyewash station for ≥15 minutes

37 / 50

37) Gloves should be changed

A) only when torn

B) between every patient contact

C) after lunch break

D) once per hour

38 / 50

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

A) complete incident report only

B) remove gloves next shift

C) wash area with soap and water

D) apply bandage without washing

39 / 50

39) 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

40 / 50

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

A) open all acid jugs

B) ignore; odor is normal

C) shut down all dialysis machines immediately without assessing

D) notify supervisor and investigate for leaks

41 / 50

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

A) rest forearms on hard desk edges

B) keep wrists straight and elbows at 90°

C) type with one finger

D) stand hunched over the keyboard

42 / 50

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

A) behind heavy boxes

B) between knee and shoulder height

C) on the floor

D) above head level

43 / 50

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

A) reduce noise in unit

B) prevent cross-contamination via splashes

C) comply with dress code

D) keep staff warm

44 / 50

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

A) Influenza

B) Typhoid

C) Cholera

D) Varicella

45 / 50

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

A) closed-toe, non-skid shoes

B) high-heeled boots

C) open-toe sandals

D) cloth slippers

46 / 50

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

A) tap water

B) plain alcohol

C) EPA-registered disinfectant

D) vinegar solution

47 / 50

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

A) 30 seconds

B) 15 minutes

C) 1 minute

D) 3 minutes

48 / 50

48) 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

49 / 50

49) 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

50 / 50

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

A) drink water

B) lie flat in same area

C) be moved to fresh air

D) take deep breaths of the chemical

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