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

A) ignore; odor is normal

B) shut down all dialysis machines immediately without assessing

C) notify supervisor and investigate for leaks

D) open all acid jugs

2 / 50

2) Proper disposal for used PPE contaminated with blood is

A) recycle bin

B) sharps container

C) regular trash

D) red biohazard bag

3 / 50

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

A) complete incident report only

B) wash area with soap and water

C) remove gloves next shift

D) apply bandage without washing

4 / 50

4) Sharps containers should be replaced when they are

A) ¾ full

B) completely full to the top

C) emptied each week regardless of level

D) half full

5 / 50

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

A) regular trash bags

B) a dedicated, leak-proof, labeled container

C) an open wire basket

D) a linen hamper

6 / 50

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

A) take deep breaths of the chemical

B) lie flat in same area

C) drink water

D) be moved to fresh air

7 / 50

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

A) silence all machine alarms

B) finish current saline return

C) search for the fire source

D) remove patients from immediate danger

8 / 50

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

A) 10 mL bleach in 990 mL water

B) 1 mL bleach in 10 mL water

C) 5 mL bleach in 500 mL water

D) 50 mL bleach in 50 mL water

9 / 50

9) The correct order for removing PPE is typically

A) gown → mask → gloves

B) mask → gown → gloves

C) face shield → mask → gloves → gown

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

10 / 50

10) Which practice prevents back injury during patient repositioning?

A) Lifting alone regardless of weight

B) Stopping midway to adjust grip

C) Reaching over bed rails with arms extended

D) Keeping patient close to body and using slide sheet

11 / 50

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

A) prevent cross-contamination via splashes

B) reduce noise in unit

C) comply with dress code

D) keep staff warm

12 / 50

12) Emergency eyewash stations must be checked

A) once per year

B) only after an incident

C) monthly if time permits

D) weekly per facility policy

13 / 50

13) Vaccination considered MANDATORY for dialysis staff is

A) Yellow fever

B) Rabies

C) Smallpox

D) Hepatitis B series

14 / 50

14) Each chemical container must include

A) price stickers

B) handwritten abbreviations only

C) patient ID

D) a legible manufacturer label with hazard pictograms

15 / 50

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

A) absorbent towels soaked in bleach

B) dry paper towels for 30 minutes, then removed

C) alcohol swabs only

D) coffee filters

16 / 50

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

A) hug with one arm

B) use a rolling cart rather than carrying by hand

C) carry at shoulder height

D) drag along the floor

17 / 50

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

A) rest flat on floor

B) press on chair ring only

C) dangle freely

D) cross at ankles

18 / 50

18) A patient with known MRSA should be seated

A) beside immune patients

B) in staff lounge

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

D) anywhere in the row

19 / 50

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

A) place empty dialysate boxes in the hall temporarily

B) store wheelchairs in front of the doors

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

D) mark exits with yellow tape only

20 / 50

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

A) twist while lifting for leverage

B) hold box away from the body

C) bend at the waist

D) keep back straight and lift with legs

21 / 50

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

A) unlock mechanism before lifting

B) yank upward quickly

C) twist torso while pulling

D) reach across patient

22 / 50

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

A) 36 in (91 cm)

B) 24 in (61 cm)

C) 30 in (76 cm)

D) 12 in (30 cm)

23 / 50

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

A) disconnect themselves

B) pull fire alarm

C) stay seated and protect head/neck

D) run for the exit

24 / 50

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

A) EPA-registered disinfectant

B) tap water

C) plain alcohol

D) vinegar solution

25 / 50

25) 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

26 / 50

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

A) Cholera

B) Varicella

C) Influenza

D) Typhoid

27 / 50

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

A) extra bleach solution

B) alcohol spray

C) baking soda solution if facility protocol allows

D) plain water only

28 / 50

28) An HBsAg-positive patient must be dialyzed

A) first shift each morning

B) on any available machine after wipe-down

C) on a dedicated machine in an isolation area

D) next to another hepatitis B-positive patient only

29 / 50

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

A) closed-toe, non-skid shoes

B) high-heeled boots

C) cloth slippers

D) open-toe sandals

30 / 50

30) 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

31 / 50

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

A) on the floor

B) between knee and shoulder height

C) above head level

D) behind heavy boxes

32 / 50

32) Food and drink in the treatment area are

A) prohibited to avoid contamination

B) stored under dialysis machines

C) mandatory for diabetic patients

D) allowed for staff only

33 / 50

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

A) open dialysate lines to air

B) mix bleach and ammonia for extra strength

C) spray disinfectant on the patient

D) remove clean supplies from the area

34 / 50

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

A) reused without rinsing

B) stored wet in closet

C) rinsed, then placed in designated disinfectant bin

D) thrown in regular trash dry

35 / 50

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

A) keep wrists straight and elbows at 90°

B) type with one finger

C) stand hunched over the keyboard

D) rest forearms on hard desk edges

36 / 50

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

A) Gloved hands only

B) Alcohol-based rub

C) Antiseptic wipes

D) Soap and water for ≥20 seconds

37 / 50

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

A) Isopropyl alcohol

B) Hydrogen peroxide

C) Ammonia-based cleaner

D) Quaternary ammonium wipes

38 / 50

38) A splash to the eyes with dialysate requires

A) closing eyes tightly and waiting

B) immediate flush at eyewash station for ≥15 minutes

C) notifying biomedical only

D) applying antibiotic ointment

39 / 50

39) The CDC recommends alcohol hand rub contain at least

A) 60 % alcohol

B) 40 % alcohol

C) 20 % alcohol

D) 30 % alcohol

40 / 50

40) 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

41 / 50

41) Gloves should be changed

A) after lunch break

B) between every patient contact

C) once per hour

D) only when torn

42 / 50

42) Chemical Safety Data Sheets (SDS) must be

A) readily accessible to all staff at all times

B) sent home with patients

C) locked in manager’s office

D) discarded after 30 days

43 / 50

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

A) perform hand hygiene and don new gloves

B) ask another technician to finish

C) tape the tear and keep working

D) continue barehanded

44 / 50

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

A) Standard precautions

B) Chemical hygiene

C) Unobstructed access to emergency equipment

D) Proper body mechanics

45 / 50

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

A) the same person holding first bag

B) environmental services only

C) a clean-gloved coworker outside the room

D) bare hands for better grip

46 / 50

46) 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

47 / 50

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

A) 15 minutes

B) 30 seconds

C) 3 minutes

D) 1 minute

48 / 50

48) Routine surface disinfection between patients helps primarily to

A) increase room humidity

B) save on deep-cleaning costs

C) polish equipment

D) break the chain of infection transmission

49 / 50

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

A) 5 minutes

B) 1 minute

C) 15 minutes

D) 30 seconds

50 / 50

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

A) used as leverage points

B) removed or swung aside first

C) left in place for speed

D) taped to floor

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