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) In case of chemical inhalation, the victim should first

A) drink water

B) take deep breaths of the chemical

C) be moved to fresh air

D) lie flat in same area

2 / 50

2) Before cleaning a blood spill, staff must don

A) shoe covers only

B) gloves and eye/face protection

C) surgical cap only

D) no PPE if spill is small

3 / 50

3) Gloves should be changed

A) after lunch break

B) between every patient contact

C) only when torn

D) once per hour

4 / 50

4) An HBsAg-positive patient must be dialyzed

A) on any available machine after wipe-down

B) on a dedicated machine in an isolation area

C) next to another hepatitis B-positive patient only

D) first shift each morning

5 / 50

5) A splash to the eyes with dialysate requires

A) closing eyes tightly and waiting

B) notifying biomedical only

C) immediate flush at eyewash station for ≥15 minutes

D) applying antibiotic ointment

6 / 50

6) Each chemical container must include

A) patient ID

B) a legible manufacturer label with hazard pictograms

C) handwritten abbreviations only

D) price stickers

7 / 50

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

A) open dialysate lines to air

B) spray disinfectant on the patient

C) mix bleach and ammonia for extra strength

D) remove clean supplies from the area

8 / 50

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

A) taped to floor

B) removed or swung aside first

C) left in place for speed

D) used as leverage points

9 / 50

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

A) wash area with soap and water

B) remove gloves next shift

C) complete incident report only

D) apply bandage without washing

10 / 50

10) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Hairnet only

B) Shoe covers only

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

D) Lead apron

11 / 50

11) The CDC recommends alcohol hand rub contain at least

A) 40 % alcohol

B) 60 % alcohol

C) 20 % alcohol

D) 30 % alcohol

12 / 50

12) The correct order for removing PPE is typically

A) mask → gown → gloves

B) gown → mask → gloves

C) face shield → mask → gloves → gown

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

13 / 50

13) Proper disposal for used PPE contaminated with blood is

A) red biohazard bag

B) regular trash

C) recycle bin

D) sharps container

14 / 50

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

A) extra bleach solution

B) plain water only

C) alcohol spray

D) baking soda solution if facility protocol allows

15 / 50

15) Sharps containers should be replaced when they are

A) completely full to the top

B) emptied each week regardless of level

C) ¾ full

D) half full

16 / 50

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

A) disconnect themselves

B) stay seated and protect head/neck

C) run for the exit

D) pull fire alarm

17 / 50

17) 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)

18 / 50

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

A) Proper body mechanics

B) Standard precautions

C) Chemical hygiene

D) Unobstructed access to emergency equipment

19 / 50

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

A) Isopropyl alcohol

B) Ammonia-based cleaner

C) Quaternary ammonium wipes

D) Hydrogen peroxide

20 / 50

20) Which practice prevents back injury during patient repositioning?

A) Stopping midway to adjust grip

B) Reaching over bed rails with arms extended

C) Lifting alone regardless of weight

D) Keeping patient close to body and using slide sheet

21 / 50

21) To prevent trip hazards, electrical cords should be

A) hidden under rugs

B) run across aisles

C) coiled loosely on floor

D) secured and kept out of walkways

22 / 50

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

A) 1 mL bleach in 10 mL water

B) 5 mL bleach in 500 mL water

C) 10 mL bleach in 990 mL water

D) 50 mL bleach in 50 mL water

23 / 50

23) Emergency eyewash stations must be checked

A) monthly if time permits

B) once per year

C) weekly per facility policy

D) only after an incident

24 / 50

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

A) hug with one arm

B) drag along the floor

C) use a rolling cart rather than carrying by hand

D) carry at shoulder height

25 / 50

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

A) stored wet in closet

B) rinsed, then placed in designated disinfectant bin

C) thrown in regular trash dry

D) reused without rinsing

26 / 50

26) Chemical Safety Data Sheets (SDS) must be

A) sent home with patients

B) discarded after 30 days

C) locked in manager’s office

D) readily accessible to all staff at all times

27 / 50

27) 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

28 / 50

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

A) comply with dress code

B) reduce noise in unit

C) keep staff warm

D) prevent cross-contamination via splashes

29 / 50

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

A) ignore; odor is normal

B) open all acid jugs

C) notify supervisor and investigate for leaks

D) shut down all dialysis machines immediately without assessing

30 / 50

30) 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

31 / 50

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

A) silence all machine alarms

B) search for the fire source

C) remove patients from immediate danger

D) finish current saline return

32 / 50

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

A) stand hunched over the keyboard

B) type with one finger

C) rest forearms on hard desk edges

D) keep wrists straight and elbows at 90°

33 / 50

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

A) Influenza

B) Cholera

C) Typhoid

D) Varicella

34 / 50

34) A patient with known MRSA should be seated

A) anywhere in the row

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

C) in staff lounge

D) beside immune patients

35 / 50

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

A) the same person holding first bag

B) bare hands for better grip

C) a clean-gloved coworker outside the room

D) environmental services only

36 / 50

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

A) unlock mechanism before lifting

B) twist torso while pulling

C) reach across patient

D) yank upward quickly

37 / 50

37) 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

38 / 50

38) 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

39 / 50

39) 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

40 / 50

40) Food and drink in the treatment area are

A) allowed for staff only

B) prohibited to avoid contamination

C) stored under dialysis machines

D) mandatory for diabetic patients

41 / 50

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

A) above head level

B) behind heavy boxes

C) between knee and shoulder height

D) on the floor

42 / 50

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

A) tape the tear and keep working

B) perform hand hygiene and don new gloves

C) ask another technician to finish

D) continue barehanded

43 / 50

43) Routine surface disinfection between patients helps primarily to

A) polish equipment

B) increase room humidity

C) save on deep-cleaning costs

D) break the chain of infection transmission

44 / 50

44) Vaccination considered MANDATORY for dialysis staff is

A) Yellow fever

B) Smallpox

C) Hepatitis B series

D) Rabies

45 / 50

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

A) EPA-registered disinfectant

B) tap water

C) plain alcohol

D) vinegar solution

46 / 50

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

A) absorbent towels soaked in bleach

B) alcohol swabs only

C) coffee filters

D) dry paper towels for 30 minutes, then removed

47 / 50

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

A) press on chair ring only

B) dangle freely

C) rest flat on floor

D) cross at ankles

48 / 50

48) 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

49 / 50

49) 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

50 / 50

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

A) shorten treatment

B) lower noise level

C) prevent blood exposure to environment

D) save tubing for reuse

Your score is

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