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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11

CCHT Environment Practice Test

1 / 50

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

A) shorten treatment

B) lower noise level

C) save tubing for reuse

D) prevent blood exposure to environment

2 / 50

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

A) continue barehanded

B) ask another technician to finish

C) perform hand hygiene and don new gloves

D) tape the tear and keep working

3 / 50

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

A) Standard precautions

B) Unobstructed access to emergency equipment

C) Chemical hygiene

D) Proper body mechanics

4 / 50

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

A) dangle freely

B) cross at ankles

C) press on chair ring only

D) rest flat on floor

5 / 50

5) 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

6 / 50

6) Routine surface disinfection between patients helps primarily to

A) increase room humidity

B) polish equipment

C) break the chain of infection transmission

D) save on deep-cleaning costs

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) 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

9 / 50

9) To prevent trip hazards, electrical cords should be

A) run across aisles

B) coiled loosely on floor

C) hidden under rugs

D) secured and kept out of walkways

10 / 50

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

A) vinegar solution

B) EPA-registered disinfectant

C) plain alcohol

D) tap water

11 / 50

11) A patient with known MRSA should be seated

A) anywhere in the row

B) in staff lounge

C) beside immune patients

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

12 / 50

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

A) 3 minutes

B) 1 minute

C) 30 seconds

D) 15 minutes

13 / 50

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

A) run for the exit

B) disconnect themselves

C) pull fire alarm

D) stay seated and protect head/neck

14 / 50

14) 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

15 / 50

15) The correct order for removing PPE is typically

A) mask → gown → gloves

B) face shield → mask → gloves → gown

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

D) gown → mask → gloves

16 / 50

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

A) a linen hamper

B) a dedicated, leak-proof, labeled container

C) regular trash bags

D) an open wire basket

17 / 50

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

A) lie flat in same area

B) be moved to fresh air

C) drink water

D) take deep breaths of the chemical

18 / 50

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

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

B) mark exits with yellow tape only

C) store wheelchairs in front of the doors

D) place empty dialysate boxes in the hall temporarily

19 / 50

19) 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

20 / 50

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

A) bend at the waist

B) twist while lifting for leverage

C) keep back straight and lift with legs

D) hold box away from the body

21 / 50

21) Each chemical container must include

A) handwritten abbreviations only

B) a legible manufacturer label with hazard pictograms

C) patient ID

D) price stickers

22 / 50

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

A) a clean-gloved coworker outside the room

B) the same person holding first bag

C) bare hands for better grip

D) environmental services only

23 / 50

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

A) Isopropyl alcohol

B) Quaternary ammonium wipes

C) Hydrogen peroxide

D) Ammonia-based cleaner

24 / 50

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

A) unlock mechanism before lifting

B) reach across patient

C) twist torso while pulling

D) yank upward quickly

25 / 50

25) Gloves should be changed

A) only when torn

B) once per hour

C) after lunch break

D) between every patient contact

26 / 50

26) Before cleaning a blood spill, staff must don

A) surgical cap only

B) shoe covers only

C) gloves and eye/face protection

D) no PPE if spill is small

27 / 50

27) 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

28 / 50

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

A) 15 minutes

B) 1 minute

C) 5 minutes

D) 30 seconds

29 / 50

29) Proper disposal for used PPE contaminated with blood is

A) recycle bin

B) sharps container

C) regular trash

D) red biohazard bag

30 / 50

30) 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

31 / 50

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

A) keep staff warm

B) reduce noise in unit

C) comply with dress code

D) prevent cross-contamination via splashes

32 / 50

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

A) finish current saline return

B) silence all machine alarms

C) search for the fire source

D) remove patients from immediate danger

33 / 50

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

A) stored wet in closet

B) thrown in regular trash dry

C) reused without rinsing

D) rinsed, then placed in designated disinfectant bin

34 / 50

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

A) Cholera

B) Influenza

C) Typhoid

D) Varicella

35 / 50

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

A) remove gloves next shift

B) complete incident report only

C) wash area with soap and water

D) apply bandage without washing

36 / 50

36) 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

37 / 50

37) Vaccination considered MANDATORY for dialysis staff is

A) Smallpox

B) Hepatitis B series

C) Yellow fever

D) Rabies

38 / 50

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

A) 50 mL bleach in 50 mL water

B) 5 mL bleach in 500 mL water

C) 1 mL bleach in 10 mL water

D) 10 mL bleach in 990 mL water

39 / 50

39) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Lead apron

B) Shoe covers only

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

D) Hairnet only

40 / 50

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

A) extra bleach solution

B) plain water only

C) baking soda solution if facility protocol allows

D) alcohol spray

41 / 50

41) 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

42 / 50

42) 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) Stopping midway to adjust grip

D) Reaching over bed rails with arms extended

43 / 50

43) An HBsAg-positive patient must be dialyzed

A) on any available machine after wipe-down

B) first shift each morning

C) on a dedicated machine in an isolation area

D) next to another hepatitis B-positive patient only

44 / 50

44) Food and drink in the treatment area are

A) stored under dialysis machines

B) allowed for staff only

C) mandatory for diabetic patients

D) prohibited to avoid contamination

45 / 50

45) 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

46 / 50

46) 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

47 / 50

47) The CDC recommends alcohol hand rub contain at least

A) 20 % alcohol

B) 30 % alcohol

C) 40 % alcohol

D) 60 % alcohol

48 / 50

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

A) 12 in (30 cm)

B) 36 in (91 cm)

C) 30 in (76 cm)

D) 24 in (61 cm)

49 / 50

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

A) use a rolling cart rather than carrying by hand

B) carry at shoulder height

C) hug with one arm

D) drag along the floor

50 / 50

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

A) remove clean supplies from the area

B) spray disinfectant on the patient

C) open dialysate lines to air

D) mix bleach and ammonia for extra strength

Your score is

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