CCHT Environment Practice Test 2026 Questions Answers

Last Updated on May 13, 2026

CCHT Environment Practice Test 2026 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 19-25 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) Which disinfectant CANNOT be mixed with bleach due to toxic fumes?

A) Isopropyl alcohol

B) Hydrogen peroxide

C) Quaternary ammonium wipes

D) Ammonia-based cleaner

2 / 50

2) Proper disposal for used PPE contaminated with blood is

A) regular trash

B) recycle bin

C) sharps container

D) red biohazard bag

3 / 50

3) To prevent trip hazards, electrical cords should be

A) coiled loosely on floor

B) run across aisles

C) secured and kept out of walkways

D) hidden under rugs

4 / 50

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

A) reduce noise in unit

B) keep staff warm

C) prevent cross-contamination via splashes

D) comply with dress code

5 / 50

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

A) coffee filters

B) absorbent towels soaked in bleach

C) dry paper towels for 30 minutes, then removed

D) alcohol swabs only

6 / 50

6) The CDC recommends alcohol hand rub contain at least

A) 20 % alcohol

B) 60 % alcohol

C) 30 % alcohol

D) 40 % alcohol

7 / 50

7) Chemical Safety Data Sheets (SDS) must be

A) sent home with patients

B) readily accessible to all staff at all times

C) locked in manager’s office

D) discarded after 30 days

8 / 50

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

A) drag along the floor

B) carry at shoulder height

C) hug with one arm

D) use a rolling cart rather than carrying by hand

9 / 50

9) Which practice prevents back injury during patient repositioning?

A) Stopping midway to adjust grip

B) Lifting alone regardless of weight

C) Keeping patient close to body and using slide sheet

D) Reaching over bed rails with arms extended

10 / 50

10) A splash to the eyes with dialysate requires

A) immediate flush at eyewash station for ≥15 minutes

B) closing eyes tightly and waiting

C) applying antibiotic ointment

D) notifying biomedical only

11 / 50

11) 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

12 / 50

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

A) 5 mL bleach in 500 mL water

B) 1 mL bleach in 10 mL water

C) 10 mL bleach in 990 mL water

D) 50 mL bleach in 50 mL water

13 / 50

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

A) alcohol spray

B) plain water only

C) baking soda solution if facility protocol allows

D) extra bleach solution

14 / 50

14) 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

15 / 50

15) Routine surface disinfection between patients helps primarily to

A) increase room humidity

B) break the chain of infection transmission

C) save on deep-cleaning costs

D) polish equipment

16 / 50

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

A) ask another technician to finish

B) tape the tear and keep working

C) continue barehanded

D) perform hand hygiene and don new gloves

17 / 50

17) Gloves should be changed

A) once per hour

B) after lunch break

C) only when torn

D) between every patient contact

18 / 50

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

A) type with one finger

B) keep wrists straight and elbows at 90°

C) rest forearms on hard desk edges

D) stand hunched over the keyboard

19 / 50

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

A) 24 in (61 cm)

B) 30 in (76 cm)

C) 36 in (91 cm)

D) 12 in (30 cm)

20 / 50

20) Before cleaning a blood spill, staff must don

A) gloves and eye/face protection

B) surgical cap only

C) shoe covers only

D) no PPE if spill is small

21 / 50

21) 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

22 / 50

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

A) plain alcohol

B) EPA-registered disinfectant

C) tap water

D) vinegar solution

23 / 50

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

A) cloth slippers

B) high-heeled boots

C) open-toe sandals

D) closed-toe, non-skid shoes

24 / 50

24) Vaccination considered MANDATORY for dialysis staff is

A) Hepatitis B series

B) Yellow fever

C) Smallpox

D) Rabies

25 / 50

25) Emergency eyewash stations must be checked

A) monthly if time permits

B) once per year

C) only after an incident

D) weekly per facility policy

26 / 50

26) 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

27 / 50

27) The correct order for removing PPE is typically

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

B) mask → gown → gloves

C) gown → mask → gloves

D) face shield → mask → gloves → gown

28 / 50

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

A) Alcohol-based rub

B) Antiseptic wipes

C) Soap and water for ≥20 seconds

D) Gloved hands only

29 / 50

29) 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

30 / 50

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

A) apply bandage without washing

B) wash area with soap and water

C) complete incident report only

D) remove gloves next shift

31 / 50

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

A) pull fire alarm

B) run for the exit

C) disconnect themselves

D) stay seated and protect head/neck

32 / 50

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

A) 30 seconds

B) 1 minute

C) 5 minutes

D) 15 minutes

33 / 50

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

A) save tubing for reuse

B) lower noise level

C) prevent blood exposure to environment

D) shorten treatment

34 / 50

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

A) thrown in regular trash dry

B) reused without rinsing

C) rinsed, then placed in designated disinfectant bin

D) stored wet in closet

35 / 50

35) Each chemical container must include

A) price stickers

B) patient ID

C) handwritten abbreviations only

D) a legible manufacturer label with hazard pictograms

36 / 50

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

A) an open wire basket

B) a linen hamper

C) regular trash bags

D) a dedicated, leak-proof, labeled container

37 / 50

37) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Hairnet only

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

C) Shoe covers only

D) Lead apron

38 / 50

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

A) store wheelchairs in front of the doors

B) place empty dialysate boxes in the hall temporarily

C) mark exits with yellow tape only

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

39 / 50

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

A) 30 seconds

B) 15 minutes

C) 1 minute

D) 3 minutes

40 / 50

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

A) Varicella

B) Influenza

C) Cholera

D) Typhoid

41 / 50

41) 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) open dialysate lines to air

D) spray disinfectant on the patient

42 / 50

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

A) bend at the waist

B) keep back straight and lift with legs

C) hold box away from the body

D) twist while lifting for leverage

43 / 50

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

A) the same person holding first bag

B) a clean-gloved coworker outside the room

C) environmental services only

D) bare hands for better grip

44 / 50

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

A) behind heavy boxes

B) on the floor

C) above head level

D) between knee and shoulder height

45 / 50

45) 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) first shift each morning

D) on any available machine after wipe-down

46 / 50

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

A) drink water

B) lie flat in same area

C) take deep breaths of the chemical

D) be moved to fresh air

47 / 50

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

A) Chemical hygiene

B) Proper body mechanics

C) Standard precautions

D) Unobstructed access to emergency equipment

48 / 50

48) 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

49 / 50

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

A) notify supervisor and investigate for leaks

B) open all acid jugs

C) shut down all dialysis machines immediately without assessing

D) ignore; odor is normal

50 / 50

50) Food and drink in the treatment area are

A) stored under dialysis machines

B) mandatory for diabetic patients

C) allowed for staff only

D) prohibited to avoid contamination

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