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) A splash to the eyes with dialysate requires

A) immediate flush at eyewash station for ≥15 minutes

B) closing eyes tightly and waiting

C) notifying biomedical only

D) applying antibiotic ointment

2 / 50

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

A) Soap and water for ≥20 seconds

B) Alcohol-based rub

C) Antiseptic wipes

D) Gloved hands only

3 / 50

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

A) cloth slippers

B) high-heeled boots

C) open-toe sandals

D) closed-toe, non-skid shoes

4 / 50

4) Sharps containers should be replaced when they are

A) emptied each week regardless of level

B) half full

C) ¾ full

D) completely full to the top

5 / 50

5) 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

6 / 50

6) 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) notify supervisor and investigate for leaks

D) ignore; odor is normal

7 / 50

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

A) complete incident report only

B) wash area with soap and water

C) apply bandage without washing

D) remove gloves next shift

8 / 50

8) 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

9 / 50

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

A) Proper body mechanics

B) Standard precautions

C) Unobstructed access to emergency equipment

D) Chemical hygiene

10 / 50

10) The correct order for removing PPE is typically

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

B) mask → gown → gloves

C) gown → mask → gloves

D) face shield → mask → gloves → gown

11 / 50

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

A) alcohol spray

B) extra bleach solution

C) baking soda solution if facility protocol allows

D) plain water only

12 / 50

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

A) 5 mL bleach in 500 mL water

B) 50 mL bleach in 50 mL water

C) 10 mL bleach in 990 mL water

D) 1 mL bleach in 10 mL water

13 / 50

13) A patient with known MRSA should be seated

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

B) anywhere in the row

C) in staff lounge

D) beside immune patients

14 / 50

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

A) 36 in (91 cm)

B) 12 in (30 cm)

C) 24 in (61 cm)

D) 30 in (76 cm)

15 / 50

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

A) stay seated and protect head/neck

B) run for the exit

C) disconnect themselves

D) pull fire alarm

16 / 50

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

A) be moved to fresh air

B) drink water

C) take deep breaths of the chemical

D) lie flat in same area

17 / 50

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

A) 30 seconds

B) 15 minutes

C) 3 minutes

D) 1 minute

18 / 50

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

A) tap water

B) vinegar solution

C) EPA-registered disinfectant

D) plain alcohol

19 / 50

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

A) a dedicated, leak-proof, labeled container

B) an open wire basket

C) regular trash bags

D) a linen hamper

20 / 50

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

A) Varicella

B) Influenza

C) Typhoid

D) Cholera

21 / 50

21) 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

22 / 50

22) Each chemical container must include

A) price stickers

B) a legible manufacturer label with hazard pictograms

C) patient ID

D) handwritten abbreviations only

23 / 50

23) Emergency eyewash stations must be checked

A) weekly per facility policy

B) only after an incident

C) monthly if time permits

D) once per year

24 / 50

24) 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

25 / 50

25) An HBsAg-positive patient must be dialyzed

A) on a dedicated machine in an isolation area

B) next to another hepatitis B-positive patient only

C) first shift each morning

D) on any available machine after wipe-down

26 / 50

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

A) reduce noise in unit

B) keep staff warm

C) comply with dress code

D) prevent cross-contamination via splashes

27 / 50

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

A) removed or swung aside first

B) left in place for speed

C) used as leverage points

D) taped to floor

28 / 50

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

A) spray disinfectant on the patient

B) mix bleach and ammonia for extra strength

C) remove clean supplies from the area

D) open dialysate lines to air

29 / 50

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

A) 15 minutes

B) 30 seconds

C) 1 minute

D) 5 minutes

30 / 50

30) The CDC recommends alcohol hand rub contain at least

A) 20 % alcohol

B) 30 % alcohol

C) 40 % alcohol

D) 60 % alcohol

31 / 50

31) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Shoe covers only

B) Lead apron

C) Hairnet only

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

32 / 50

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

A) lower noise level

B) shorten treatment

C) prevent blood exposure to environment

D) save tubing for reuse

33 / 50

33) Proper disposal for used PPE contaminated with blood is

A) sharps container

B) recycle bin

C) red biohazard bag

D) regular trash

34 / 50

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

A) remove patients from immediate danger

B) search for the fire source

C) silence all machine alarms

D) finish current saline return

35 / 50

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

A) store wheelchairs in front of the doors

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

C) mark exits with yellow tape only

D) place empty dialysate boxes in the hall temporarily

36 / 50

36) Before cleaning a blood spill, staff must don

A) no PPE if spill is small

B) surgical cap only

C) gloves and eye/face protection

D) shoe covers only

37 / 50

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

A) perform hand hygiene and don new gloves

B) tape the tear and keep working

C) continue barehanded

D) ask another technician to finish

38 / 50

38) Chemical Safety Data Sheets (SDS) must be

A) discarded after 30 days

B) locked in manager’s office

C) sent home with patients

D) readily accessible to all staff at all times

39 / 50

39) Routine surface disinfection between patients helps primarily to

A) polish equipment

B) break the chain of infection transmission

C) increase room humidity

D) save on deep-cleaning costs

40 / 50

40) 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

41 / 50

41) Vaccination considered MANDATORY for dialysis staff is

A) Hepatitis B series

B) Yellow fever

C) Rabies

D) Smallpox

42 / 50

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

A) hold box away from the body

B) bend at the waist

C) twist while lifting for leverage

D) keep back straight and lift with legs

43 / 50

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

A) drag along the floor

B) use a rolling cart rather than carrying by hand

C) carry at shoulder height

D) hug with one arm

44 / 50

44) To prevent trip hazards, electrical cords should be

A) run across aisles

B) secured and kept out of walkways

C) hidden under rugs

D) coiled loosely on floor

45 / 50

45) Gloves should be changed

A) only when torn

B) once per hour

C) between every patient contact

D) after lunch break

46 / 50

46) Food and drink in the treatment area are

A) prohibited to avoid contamination

B) stored under dialysis machines

C) allowed for staff only

D) mandatory for diabetic patients

47 / 50

47) 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

48 / 50

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

A) environmental services only

B) the same person holding first bag

C) bare hands for better grip

D) a clean-gloved coworker outside the room

49 / 50

49) 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

50 / 50

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

A) press on chair ring only

B) cross at ankles

C) rest flat on floor

D) dangle freely

Your score is

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