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) Emergency eyewash stations must be checked

A) only after an incident

B) monthly if time permits

C) once per year

D) weekly per facility policy

2 / 50

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

A) silence all machine alarms

B) remove patients from immediate danger

C) finish current saline return

D) search for the fire source

3 / 50

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

A) rinsed, then placed in designated disinfectant bin

B) stored wet in closet

C) reused without rinsing

D) thrown in regular trash dry

4 / 50

4) The CDC recommends alcohol hand rub contain at least

A) 40 % alcohol

B) 20 % alcohol

C) 30 % alcohol

D) 60 % alcohol

5 / 50

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

A) drag along the floor

B) hug with one arm

C) carry at shoulder height

D) use a rolling cart rather than carrying by hand

6 / 50

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

A) apply bandage without washing

B) complete incident report only

C) remove gloves next shift

D) wash area with soap and water

7 / 50

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

A) keep staff warm

B) prevent cross-contamination via splashes

C) reduce noise in unit

D) comply with dress code

8 / 50

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

A) mix bleach and ammonia for extra strength

B) remove clean supplies from the area

C) spray disinfectant on the patient

D) open dialysate lines to air

9 / 50

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

A) an open wire basket

B) a dedicated, leak-proof, labeled container

C) regular trash bags

D) a linen hamper

10 / 50

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

A) Cholera

B) Varicella

C) Typhoid

D) Influenza

11 / 50

11) Vaccination considered MANDATORY for dialysis staff is

A) Rabies

B) Yellow fever

C) Hepatitis B series

D) Smallpox

12 / 50

12) Routine surface disinfection between patients helps primarily to

A) save on deep-cleaning costs

B) break the chain of infection transmission

C) increase room humidity

D) polish equipment

13 / 50

13) 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

14 / 50

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

A) rest flat on floor

B) cross at ankles

C) press on chair ring only

D) dangle freely

15 / 50

15) Food and drink in the treatment area are

A) mandatory for diabetic patients

B) prohibited to avoid contamination

C) stored under dialysis machines

D) allowed for staff only

16 / 50

16) Which practice prevents back injury during patient repositioning?

A) Lifting alone regardless of weight

B) Stopping midway to adjust grip

C) Keeping patient close to body and using slide sheet

D) Reaching over bed rails with arms extended

17 / 50

17) 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

18 / 50

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

A) 1 minute

B) 15 minutes

C) 3 minutes

D) 30 seconds

19 / 50

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

A) environmental services only

B) bare hands for better grip

C) a clean-gloved coworker outside the room

D) the same person holding first bag

20 / 50

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

A) left in place for speed

B) taped to floor

C) removed or swung aside first

D) used as leverage points

21 / 50

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

A) Chemical hygiene

B) Standard precautions

C) Unobstructed access to emergency equipment

D) Proper body mechanics

22 / 50

22) Sharps containers should be replaced when they are

A) completely full to the top

B) emptied each week regardless of level

C) half full

D) ¾ full

23 / 50

23) 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

24 / 50

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

A) above head level

B) between knee and shoulder height

C) behind heavy boxes

D) on the floor

25 / 50

25) 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) stand hunched over the keyboard

D) type with one finger

26 / 50

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

A) open-toe sandals

B) high-heeled boots

C) cloth slippers

D) closed-toe, non-skid shoes

27 / 50

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

A) Alcohol-based rub

B) Soap and water for ≥20 seconds

C) Antiseptic wipes

D) Gloved hands only

28 / 50

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

A) 24 in (61 cm)

B) 12 in (30 cm)

C) 36 in (91 cm)

D) 30 in (76 cm)

29 / 50

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

A) place empty dialysate boxes in the hall temporarily

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

C) store wheelchairs in front of the doors

D) mark exits with yellow tape only

30 / 50

30) Before cleaning a blood spill, staff must don

A) no PPE if spill is small

B) shoe covers only

C) gloves and eye/face protection

D) surgical cap only

31 / 50

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

A) lower noise level

B) save tubing for reuse

C) shorten treatment

D) prevent blood exposure to environment

32 / 50

32) 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) 10 mL bleach in 990 mL water

D) 1 mL bleach in 10 mL water

33 / 50

33) 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) open all acid jugs

D) ignore; odor is normal

34 / 50

34) A patient with known MRSA should be seated

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

B) in staff lounge

C) beside immune patients

D) anywhere in the row

35 / 50

35) Proper disposal for used PPE contaminated with blood is

A) recycle bin

B) regular trash

C) sharps container

D) red biohazard bag

36 / 50

36) Which PPE item is REQUIRED during dialyzer reprocessing?

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

B) Lead apron

C) Hairnet only

D) Shoe covers only

37 / 50

37) Chemical Safety Data Sheets (SDS) must be

A) discarded after 30 days

B) sent home with patients

C) locked in manager’s office

D) readily accessible to all staff at all times

38 / 50

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

A) stay seated and protect head/neck

B) disconnect themselves

C) pull fire alarm

D) run for the exit

39 / 50

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

A) baking soda solution if facility protocol allows

B) alcohol spray

C) plain water only

D) extra bleach solution

40 / 50

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

A) lie flat in same area

B) take deep breaths of the chemical

C) be moved to fresh air

D) drink water

41 / 50

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

A) Ammonia-based cleaner

B) Hydrogen peroxide

C) Isopropyl alcohol

D) Quaternary ammonium wipes

42 / 50

42) 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

43 / 50

43) The correct order for removing PPE is typically

A) face shield → mask → gloves → gown

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

C) gown → mask → gloves

D) mask → gown → gloves

44 / 50

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

A) tape the tear and keep working

B) continue barehanded

C) perform hand hygiene and don new gloves

D) ask another technician to finish

45 / 50

45) Gloves should be changed

A) after lunch break

B) once per hour

C) only when torn

D) between every patient contact

46 / 50

46) To prevent trip hazards, electrical cords should be

A) coiled loosely on floor

B) hidden under rugs

C) run across aisles

D) secured and kept out of walkways

47 / 50

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

A) hold box away from the body

B) keep back straight and lift with legs

C) twist while lifting for leverage

D) bend at the waist

48 / 50

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

A) vinegar solution

B) plain alcohol

C) EPA-registered disinfectant

D) tap water

49 / 50

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

A) 30 seconds

B) 5 minutes

C) 15 minutes

D) 1 minute

50 / 50

50) Each chemical container must include

A) price stickers

B) patient ID

C) a legible manufacturer label with hazard pictograms

D) handwritten abbreviations only

Your score is

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