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) An HBsAg-positive patient must be dialyzed

A) next to another hepatitis B-positive patient only

B) on a dedicated machine in an isolation area

C) on any available machine after wipe-down

D) first shift each morning

2 / 50

2) 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

3 / 50

3) 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

4 / 50

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

A) regular trash bags

B) a dedicated, leak-proof, labeled container

C) a linen hamper

D) an open wire basket

5 / 50

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

A) take deep breaths of the chemical

B) drink water

C) lie flat in same area

D) be moved to fresh air

6 / 50

6) 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

7 / 50

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

A) Influenza

B) Typhoid

C) Cholera

D) Varicella

8 / 50

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

A) prevent cross-contamination via splashes

B) comply with dress code

C) reduce noise in unit

D) keep staff warm

9 / 50

9) 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

10 / 50

10) Routine surface disinfection between patients helps primarily to

A) break the chain of infection transmission

B) save on deep-cleaning costs

C) polish equipment

D) increase room humidity

11 / 50

11) A splash to the eyes with dialysate requires

A) notifying biomedical only

B) applying antibiotic ointment

C) closing eyes tightly and waiting

D) immediate flush at eyewash station for ≥15 minutes

12 / 50

12) Vaccination considered MANDATORY for dialysis staff is

A) Rabies

B) Yellow fever

C) Smallpox

D) Hepatitis B series

13 / 50

13) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Lead apron

B) Shoe covers only

C) Hairnet only

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

14 / 50

14) A patient with known MRSA should be seated

A) in staff lounge

B) anywhere in the row

C) beside immune patients

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

15 / 50

15) 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

16 / 50

16) Proper disposal for used PPE contaminated with blood is

A) regular trash

B) red biohazard bag

C) sharps container

D) recycle bin

17 / 50

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

A) 5 mL bleach in 500 mL water

B) 10 mL bleach in 990 mL water

C) 1 mL bleach in 10 mL water

D) 50 mL bleach in 50 mL water

18 / 50

18) Chemical Safety Data Sheets (SDS) must be

A) discarded after 30 days

B) sent home with patients

C) readily accessible to all staff at all times

D) locked in manager’s office

19 / 50

19) 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) reused without rinsing

D) stored wet in closet

20 / 50

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

A) reach across patient

B) unlock mechanism before lifting

C) yank upward quickly

D) twist torso while pulling

21 / 50

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

A) open dialysate lines to air

B) remove clean supplies from the area

C) mix bleach and ammonia for extra strength

D) spray disinfectant on the patient

22 / 50

22) Before cleaning a blood spill, staff must don

A) no PPE if spill is small

B) surgical cap only

C) gloves and eye/face protection

D) shoe covers only

23 / 50

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

A) taped to floor

B) left in place for speed

C) removed or swung aside first

D) used as leverage points

24 / 50

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

A) remove patients from immediate danger

B) search for the fire source

C) finish current saline return

D) silence all machine alarms

25 / 50

25) 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

26 / 50

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

A) lower noise level

B) prevent blood exposure to environment

C) shorten treatment

D) save tubing for reuse

27 / 50

27) The correct order for removing PPE is typically

A) gown → mask → gloves

B) mask → gown → gloves

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

D) face shield → mask → gloves → gown

28 / 50

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

A) 1 minute

B) 3 minutes

C) 15 minutes

D) 30 seconds

29 / 50

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

A) mark exits with yellow tape only

B) store wheelchairs in front of the doors

C) place empty dialysate boxes in the hall temporarily

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

30 / 50

30) Emergency eyewash stations must be checked

A) monthly if time permits

B) weekly per facility policy

C) once per year

D) only after an incident

31 / 50

31) Gloves should be changed

A) only when torn

B) after lunch break

C) between every patient contact

D) once per hour

32 / 50

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

A) Hydrogen peroxide

B) Isopropyl alcohol

C) Ammonia-based cleaner

D) Quaternary ammonium wipes

33 / 50

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

A) 24 in (61 cm)

B) 36 in (91 cm)

C) 12 in (30 cm)

D) 30 in (76 cm)

34 / 50

34) 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

35 / 50

35) 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

36 / 50

36) Each chemical container must include

A) price stickers

B) patient ID

C) handwritten abbreviations only

D) a legible manufacturer label with hazard pictograms

37 / 50

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

A) type with one finger

B) stand hunched over the keyboard

C) rest forearms on hard desk edges

D) keep wrists straight and elbows at 90°

38 / 50

38) 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

39 / 50

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

A) ask another technician to finish

B) perform hand hygiene and don new gloves

C) continue barehanded

D) tape the tear and keep working

40 / 50

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

A) complete incident report only

B) remove gloves next shift

C) apply bandage without washing

D) wash area with soap and water

41 / 50

41) 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

42 / 50

42) 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

43 / 50

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

A) a clean-gloved coworker outside the room

B) bare hands for better grip

C) environmental services only

D) the same person holding first bag

44 / 50

44) Sharps containers should be replaced when they are

A) half full

B) emptied each week regardless of level

C) ¾ full

D) completely full to the top

45 / 50

45) The CDC recommends alcohol hand rub contain at least

A) 60 % alcohol

B) 20 % alcohol

C) 40 % alcohol

D) 30 % alcohol

46 / 50

46) 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

47 / 50

47) To prevent trip hazards, electrical cords should be

A) hidden under rugs

B) coiled loosely on floor

C) run across aisles

D) secured and kept out of walkways

48 / 50

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

A) disconnect themselves

B) stay seated and protect head/neck

C) pull fire alarm

D) run for the exit

49 / 50

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

A) EPA-registered disinfectant

B) plain alcohol

C) tap water

D) vinegar solution

50 / 50

50) 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) bend at the waist

D) twist while lifting for leverage

Your score is

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