CCHT Environment Practice Test 2026 Questions Answers

Last Updated on June 30, 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) Dialysis stations must have at least how many inches of clear space on each side for safe evacuation?

A) 36 in (91 cm)

B) 12 in (30 cm)

C) 24 in (61 cm)

D) 30 in (76 cm)

2 / 50

2) 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

3 / 50

3) Food and drink in the treatment area are

A) prohibited to avoid contamination

B) allowed for staff only

C) stored under dialysis machines

D) mandatory for diabetic patients

4 / 50

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

A) Standard precautions

B) Proper body mechanics

C) Chemical hygiene

D) Unobstructed access to emergency equipment

5 / 50

5) Chemical Safety Data Sheets (SDS) must be

A) discarded after 30 days

B) locked in manager’s office

C) readily accessible to all staff at all times

D) sent home with patients

6 / 50

6) Proper disposal for used PPE contaminated with blood is

A) regular trash

B) red biohazard bag

C) recycle bin

D) sharps container

7 / 50

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

A) ignore; odor is normal

B) open all acid jugs

C) shut down all dialysis machines immediately without assessing

D) notify supervisor and investigate for leaks

8 / 50

8) 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

9 / 50

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

A) Antiseptic wipes

B) Alcohol-based rub

C) Soap and water for ≥20 seconds

D) Gloved hands only

10 / 50

10) 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

11 / 50

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

A) mark exits with yellow tape only

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

C) place empty dialysate boxes in the hall temporarily

D) store wheelchairs in front of the doors

12 / 50

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

A) search for the fire source

B) remove patients from immediate danger

C) silence all machine alarms

D) finish current saline return

13 / 50

13) 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

14 / 50

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

A) disconnect themselves

B) pull fire alarm

C) run for the exit

D) stay seated and protect head/neck

15 / 50

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

A) remove gloves next shift

B) wash area with soap and water

C) apply bandage without washing

D) complete incident report only

16 / 50

16) Emergency eyewash stations must be checked

A) only after an incident

B) once per year

C) weekly per facility policy

D) monthly if time permits

17 / 50

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

A) 30 seconds

B) 1 minute

C) 3 minutes

D) 15 minutes

18 / 50

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

A) used as leverage points

B) taped to floor

C) removed or swung aside first

D) left in place for speed

19 / 50

19) Gloves should be changed

A) after lunch break

B) only when torn

C) once per hour

D) between every patient contact

20 / 50

20) A patient with known MRSA should be seated

A) in staff lounge

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

C) anywhere in the row

D) beside immune patients

21 / 50

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

A) Cholera

B) Typhoid

C) Influenza

D) Varicella

22 / 50

22) Each chemical container must include

A) price stickers

B) patient ID

C) a legible manufacturer label with hazard pictograms

D) handwritten abbreviations only

23 / 50

23) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Shoe covers only

B) Lead apron

C) Hairnet only

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

24 / 50

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

A) dry paper towels for 30 minutes, then removed

B) coffee filters

C) absorbent towels soaked in bleach

D) alcohol swabs only

25 / 50

25) Before cleaning a blood spill, staff must don

A) shoe covers only

B) surgical cap only

C) gloves and eye/face protection

D) no PPE if spill is small

26 / 50

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

A) be moved to fresh air

B) lie flat in same area

C) take deep breaths of the chemical

D) drink water

27 / 50

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

A) stored wet in closet

B) thrown in regular trash dry

C) rinsed, then placed in designated disinfectant bin

D) reused without rinsing

28 / 50

28) Which practice prevents back injury during patient repositioning?

A) Stopping midway to adjust grip

B) Keeping patient close to body and using slide sheet

C) Lifting alone regardless of weight

D) Reaching over bed rails with arms extended

29 / 50

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

A) keep wrists straight and elbows at 90°

B) stand hunched over the keyboard

C) type with one finger

D) rest forearms on hard desk edges

30 / 50

30) 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) tape the tear and keep working

D) continue barehanded

31 / 50

31) Vaccination considered MANDATORY for dialysis staff is

A) Smallpox

B) Yellow fever

C) Rabies

D) Hepatitis B series

32 / 50

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

A) alcohol spray

B) plain water only

C) extra bleach solution

D) baking soda solution if facility protocol allows

33 / 50

33) Sharps containers should be replaced when they are

A) completely full to the top

B) half full

C) ¾ full

D) emptied each week regardless of level

34 / 50

34) 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

35 / 50

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

A) Ammonia-based cleaner

B) Quaternary ammonium wipes

C) Hydrogen peroxide

D) Isopropyl alcohol

36 / 50

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

A) plain alcohol

B) vinegar solution

C) tap water

D) EPA-registered disinfectant

37 / 50

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

A) spray disinfectant on the patient

B) mix bleach and ammonia for extra strength

C) remove clean supplies from the area

D) open dialysate lines to air

38 / 50

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

A) a clean-gloved coworker outside the room

B) environmental services only

C) the same person holding first bag

D) bare hands for better grip

39 / 50

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

A) high-heeled boots

B) open-toe sandals

C) cloth slippers

D) closed-toe, non-skid shoes

40 / 50

40) 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) first shift each morning

D) next to another hepatitis B-positive patient only

41 / 50

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

A) cross at ankles

B) dangle freely

C) press on chair ring only

D) rest flat on floor

42 / 50

42) 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

43 / 50

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

A) a dedicated, leak-proof, labeled container

B) a linen hamper

C) regular trash bags

D) an open wire basket

44 / 50

44) Routine surface disinfection between patients helps primarily to

A) save on deep-cleaning costs

B) increase room humidity

C) polish equipment

D) break the chain of infection transmission

45 / 50

45) A splash to the eyes with dialysate requires

A) immediate flush at eyewash station for ≥15 minutes

B) applying antibiotic ointment

C) closing eyes tightly and waiting

D) notifying biomedical only

46 / 50

46) The correct order for removing PPE is typically

A) gown → mask → gloves

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

C) mask → gown → gloves

D) face shield → mask → gloves → gown

47 / 50

47) 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

48 / 50

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

A) unlock mechanism before lifting

B) yank upward quickly

C) reach across patient

D) twist torso while pulling

49 / 50

49) The CDC recommends alcohol hand rub contain at least

A) 40 % alcohol

B) 30 % alcohol

C) 20 % alcohol

D) 60 % alcohol

50 / 50

50) 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

Your score is

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