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 footwear to reduce slip risk in dialysis units is

A) closed-toe, non-skid shoes

B) cloth slippers

C) open-toe sandals

D) high-heeled boots

2 / 50

2) Chemical Safety Data Sheets (SDS) must be

A) sent home with patients

B) locked in manager’s office

C) readily accessible to all staff at all times

D) discarded after 30 days

3 / 50

3) Gloves should be changed

A) only when torn

B) after lunch break

C) once per hour

D) between every patient contact

4 / 50

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

A) the same person holding first bag

B) a clean-gloved coworker outside the room

C) environmental services only

D) bare hands for better grip

5 / 50

5) To prevent trip hazards, electrical cords should be

A) coiled loosely on floor

B) run across aisles

C) secured and kept out of walkways

D) hidden under rugs

6 / 50

6) 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

7 / 50

7) 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

8 / 50

8) 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

9 / 50

9) Vaccination considered MANDATORY for dialysis staff is

A) Rabies

B) Smallpox

C) Yellow fever

D) Hepatitis B series

10 / 50

10) Each chemical container must include

A) patient ID

B) price stickers

C) a legible manufacturer label with hazard pictograms

D) handwritten abbreviations only

11 / 50

11) Proper disposal for used PPE contaminated with blood is

A) sharps container

B) recycle bin

C) regular trash

D) red biohazard bag

12 / 50

12) Before cleaning a blood spill, staff must don

A) no PPE if spill is small

B) surgical cap only

C) shoe covers only

D) gloves and eye/face protection

13 / 50

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

A) behind heavy boxes

B) on the floor

C) between knee and shoulder height

D) above head level

14 / 50

14) 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

15 / 50

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

A) run for the exit

B) stay seated and protect head/neck

C) pull fire alarm

D) disconnect themselves

16 / 50

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

A) perform hand hygiene and don new gloves

B) continue barehanded

C) tape the tear and keep working

D) ask another technician to finish

17 / 50

17) 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

18 / 50

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

A) 15 minutes

B) 1 minute

C) 30 seconds

D) 5 minutes

19 / 50

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

A) taped to floor

B) used as leverage points

C) left in place for speed

D) removed or swung aside first

20 / 50

20) 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) reused without rinsing

D) stored wet in closet

21 / 50

21) Routine surface disinfection between patients helps primarily to

A) break the chain of infection transmission

B) save on deep-cleaning costs

C) increase room humidity

D) polish equipment

22 / 50

22) Which practice prevents back injury during patient repositioning?

A) Lifting alone regardless of weight

B) Keeping patient close to body and using slide sheet

C) Reaching over bed rails with arms extended

D) Stopping midway to adjust grip

23 / 50

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

A) 15 minutes

B) 1 minute

C) 3 minutes

D) 30 seconds

24 / 50

24) A splash to the eyes with dialysate requires

A) applying antibiotic ointment

B) notifying biomedical only

C) immediate flush at eyewash station for ≥15 minutes

D) closing eyes tightly and waiting

25 / 50

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

A) 12 in (30 cm)

B) 24 in (61 cm)

C) 30 in (76 cm)

D) 36 in (91 cm)

26 / 50

26) Which PPE item is REQUIRED during dialyzer reprocessing?

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

B) Hairnet only

C) Shoe covers only

D) Lead apron

27 / 50

27) 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

28 / 50

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

A) remove patients from immediate danger

B) search for the fire source

C) finish current saline return

D) silence all machine alarms

29 / 50

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

A) a linen hamper

B) regular trash bags

C) a dedicated, leak-proof, labeled container

D) an open wire basket

30 / 50

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

A) comply with dress code

B) prevent cross-contamination via splashes

C) keep staff warm

D) reduce noise in unit

31 / 50

31) Sharps containers should be replaced when they are

A) completely full to the top

B) ¾ full

C) emptied each week regardless of level

D) half full

32 / 50

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

A) open all acid jugs

B) ignore; odor is normal

C) notify supervisor and investigate for leaks

D) shut down all dialysis machines immediately without assessing

33 / 50

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

A) absorbent towels soaked in bleach

B) alcohol swabs only

C) dry paper towels for 30 minutes, then removed

D) coffee filters

34 / 50

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

A) Antiseptic wipes

B) Gloved hands only

C) Soap and water for ≥20 seconds

D) Alcohol-based rub

35 / 50

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

A) Standard precautions

B) Proper body mechanics

C) Chemical hygiene

D) Unobstructed access to emergency equipment

36 / 50

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

A) save tubing for reuse

B) lower noise level

C) shorten treatment

D) prevent blood exposure to environment

37 / 50

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

A) Cholera

B) Influenza

C) Varicella

D) Typhoid

38 / 50

38) Food and drink in the treatment area are

A) stored under dialysis machines

B) mandatory for diabetic patients

C) prohibited to avoid contamination

D) allowed for staff only

39 / 50

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

A) keep back straight and lift with legs

B) bend at the waist

C) twist while lifting for leverage

D) hold box away from the body

40 / 50

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

A) type with one finger

B) keep wrists straight and elbows at 90°

C) stand hunched over the keyboard

D) rest forearms on hard desk edges

41 / 50

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

A) unlock mechanism before lifting

B) yank upward quickly

C) reach across patient

D) twist torso while pulling

42 / 50

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

A) Hydrogen peroxide

B) Quaternary ammonium wipes

C) Ammonia-based cleaner

D) Isopropyl alcohol

43 / 50

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

A) plain alcohol

B) tap water

C) vinegar solution

D) EPA-registered disinfectant

44 / 50

44) A patient with known MRSA should be seated

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

B) beside immune patients

C) in staff lounge

D) anywhere in the row

45 / 50

45) 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

46 / 50

46) 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) open dialysate lines to air

D) spray disinfectant on the patient

47 / 50

47) 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

48 / 50

48) 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

49 / 50

49) The CDC recommends alcohol hand rub contain at least

A) 20 % alcohol

B) 30 % alcohol

C) 60 % alcohol

D) 40 % alcohol

50 / 50

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

A) remove gloves next shift

B) apply bandage without washing

C) complete incident report only

D) wash area with soap and water

Your score is

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