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) The CDC recommends alcohol hand rub contain at least

A) 60 % alcohol

B) 20 % alcohol

C) 30 % alcohol

D) 40 % alcohol

2 / 50

2) An HBsAg-positive patient must be dialyzed

A) first shift each morning

B) on any available machine after wipe-down

C) next to another hepatitis B-positive patient only

D) on a dedicated machine in an isolation area

3 / 50

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

A) dangle freely

B) cross at ankles

C) rest flat on floor

D) press on chair ring only

4 / 50

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

A) Typhoid

B) Cholera

C) Varicella

D) Influenza

5 / 50

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

A) rinsed, then placed in designated disinfectant bin

B) thrown in regular trash dry

C) stored wet in closet

D) reused without rinsing

6 / 50

6) 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

7 / 50

7) 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

8 / 50

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

A) taped to floor

B) left in place for speed

C) used as leverage points

D) removed or swung aside first

9 / 50

9) 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) hold box away from the body

D) keep back straight and lift with legs

10 / 50

10) Emergency eyewash stations must be checked

A) once per year

B) monthly if time permits

C) only after an incident

D) weekly per facility policy

11 / 50

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

A) between knee and shoulder height

B) behind heavy boxes

C) on the floor

D) above head level

12 / 50

12) Food and drink in the treatment area are

A) stored under dialysis machines

B) allowed for staff only

C) prohibited to avoid contamination

D) mandatory for diabetic patients

13 / 50

13) 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

14 / 50

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

A) type with one finger

B) rest forearms on hard desk edges

C) keep wrists straight and elbows at 90°

D) stand hunched over the keyboard

15 / 50

15) Which practice prevents back injury during patient repositioning?

A) Keeping patient close to body and using slide sheet

B) Lifting alone regardless of weight

C) Reaching over bed rails with arms extended

D) Stopping midway to adjust grip

16 / 50

16) Before cleaning a blood spill, staff must don

A) shoe covers only

B) surgical cap only

C) gloves and eye/face protection

D) no PPE if spill is small

17 / 50

17) Each chemical container must include

A) a legible manufacturer label with hazard pictograms

B) handwritten abbreviations only

C) patient ID

D) price stickers

18 / 50

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

A) 3 minutes

B) 30 seconds

C) 1 minute

D) 15 minutes

19 / 50

19) 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

20 / 50

20) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Shoe covers only

B) Hairnet only

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

D) Lead apron

21 / 50

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

A) shut down all dialysis machines immediately without assessing

B) notify supervisor and investigate for leaks

C) ignore; odor is normal

D) open all acid jugs

22 / 50

22) Proper disposal for used PPE contaminated with blood is

A) recycle bin

B) regular trash

C) red biohazard bag

D) sharps container

23 / 50

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

A) high-heeled boots

B) cloth slippers

C) closed-toe, non-skid shoes

D) open-toe sandals

24 / 50

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

A) 30 in (76 cm)

B) 12 in (30 cm)

C) 24 in (61 cm)

D) 36 in (91 cm)

25 / 50

25) 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

26 / 50

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

A) alcohol swabs only

B) dry paper towels for 30 minutes, then removed

C) absorbent towels soaked in bleach

D) coffee filters

27 / 50

27) A splash to the eyes with dialysate requires

A) immediate flush at eyewash station for ≥15 minutes

B) notifying biomedical only

C) closing eyes tightly and waiting

D) applying antibiotic ointment

28 / 50

28) To prevent trip hazards, electrical cords should be

A) run across aisles

B) hidden under rugs

C) secured and kept out of walkways

D) coiled loosely on floor

29 / 50

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

A) run for the exit

B) stay seated and protect head/neck

C) disconnect themselves

D) pull fire alarm

30 / 50

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

A) carry at shoulder height

B) hug with one arm

C) drag along the floor

D) use a rolling cart rather than carrying by hand

31 / 50

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

A) 10 mL bleach in 990 mL water

B) 5 mL bleach in 500 mL water

C) 1 mL bleach in 10 mL water

D) 50 mL bleach in 50 mL water

32 / 50

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

A) tap water

B) EPA-registered disinfectant

C) vinegar solution

D) plain alcohol

33 / 50

33) Sharps containers should be replaced when they are

A) ¾ full

B) emptied each week regardless of level

C) completely full to the top

D) half full

34 / 50

34) The correct order for removing PPE is typically

A) mask → gown → gloves

B) face shield → mask → gloves → gown

C) gown → mask → gloves

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

35 / 50

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

A) environmental services only

B) bare hands for better grip

C) the same person holding first bag

D) a clean-gloved coworker outside the room

36 / 50

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

A) remove gloves next shift

B) wash area with soap and water

C) apply bandage without washing

D) complete incident report only

37 / 50

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

A) keep staff warm

B) prevent cross-contamination via splashes

C) comply with dress code

D) reduce noise in unit

38 / 50

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

A) Proper body mechanics

B) Unobstructed access to emergency equipment

C) Standard precautions

D) Chemical hygiene

39 / 50

39) Gloves should be changed

A) once per hour

B) only when torn

C) between every patient contact

D) after lunch break

40 / 50

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

A) Soap and water for ≥20 seconds

B) Gloved hands only

C) Alcohol-based rub

D) Antiseptic wipes

41 / 50

41) A patient with known MRSA should be seated

A) beside immune patients

B) in staff lounge

C) anywhere in the row

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

42 / 50

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

A) an open wire basket

B) regular trash bags

C) a linen hamper

D) a dedicated, leak-proof, labeled container

43 / 50

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

A) alcohol spray

B) baking soda solution if facility protocol allows

C) extra bleach solution

D) plain water only

44 / 50

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

A) lie flat in same area

B) drink water

C) be moved to fresh air

D) take deep breaths of the chemical

45 / 50

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

A) unlock mechanism before lifting

B) reach across patient

C) yank upward quickly

D) twist torso while pulling

46 / 50

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

A) 1 minute

B) 5 minutes

C) 15 minutes

D) 30 seconds

47 / 50

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

A) continue barehanded

B) perform hand hygiene and don new gloves

C) tape the tear and keep working

D) ask another technician to finish

48 / 50

48) 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

49 / 50

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

A) open dialysate lines to air

B) spray disinfectant on the patient

C) remove clean supplies from the area

D) mix bleach and ammonia for extra strength

50 / 50

50) Vaccination considered MANDATORY for dialysis staff is

A) Hepatitis B series

B) Smallpox

C) Yellow fever

D) Rabies

Your score is

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