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) 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

2 / 50

2) An HBsAg-positive patient must be dialyzed

A) next to another hepatitis B-positive patient only

B) on any available machine after wipe-down

C) on a dedicated machine in an isolation area

D) first shift each morning

3 / 50

3) Proper disposal for used PPE contaminated with blood is

A) regular trash

B) red biohazard bag

C) sharps container

D) recycle bin

4 / 50

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

A) Chemical hygiene

B) Standard precautions

C) Proper body mechanics

D) Unobstructed access to emergency equipment

5 / 50

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

A) 12 in (30 cm)

B) 24 in (61 cm)

C) 36 in (91 cm)

D) 30 in (76 cm)

6 / 50

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

A) 5 minutes

B) 30 seconds

C) 15 minutes

D) 1 minute

7 / 50

7) Sharps containers should be replaced when they are

A) emptied each week regardless of level

B) half full

C) completely full to the top

D) ¾ full

8 / 50

8) 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

9 / 50

9) Vaccination considered MANDATORY for dialysis staff is

A) Yellow fever

B) Hepatitis B series

C) Rabies

D) Smallpox

10 / 50

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

A) mark exits with yellow tape only

B) place empty dialysate boxes in the hall temporarily

C) store wheelchairs in front of the doors

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

11 / 50

11) Each chemical container must include

A) handwritten abbreviations only

B) price stickers

C) patient ID

D) a legible manufacturer label with hazard pictograms

12 / 50

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

A) Typhoid

B) Cholera

C) Influenza

D) Varicella

13 / 50

13) A splash to the eyes with dialysate requires

A) immediate flush at eyewash station for ≥15 minutes

B) notifying biomedical only

C) closing eyes tightly and waiting

D) applying antibiotic ointment

14 / 50

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

A) hold box away from the body

B) twist while lifting for leverage

C) keep back straight and lift with legs

D) bend at the waist

15 / 50

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

A) carry at shoulder height

B) drag along the floor

C) hug with one arm

D) use a rolling cart rather than carrying by hand

16 / 50

16) 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

17 / 50

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

A) rest forearms on hard desk edges

B) keep wrists straight and elbows at 90°

C) type with one finger

D) stand hunched over the keyboard

18 / 50

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

A) perform hand hygiene and don new gloves

B) continue barehanded

C) ask another technician to finish

D) tape the tear and keep working

19 / 50

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

A) remove gloves next shift

B) wash area with soap and water

C) complete incident report only

D) apply bandage without washing

20 / 50

20) Food and drink in the treatment area are

A) prohibited to avoid contamination

B) mandatory for diabetic patients

C) stored under dialysis machines

D) allowed for staff only

21 / 50

21) A patient with known MRSA should be seated

A) in staff lounge

B) anywhere in the row

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

D) beside immune patients

22 / 50

22) The CDC recommends alcohol hand rub contain at least

A) 60 % alcohol

B) 40 % alcohol

C) 20 % alcohol

D) 30 % alcohol

23 / 50

23) Chemical Safety Data Sheets (SDS) must be

A) readily accessible to all staff at all times

B) locked in manager’s office

C) discarded after 30 days

D) sent home with patients

24 / 50

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

A) bare hands for better grip

B) a clean-gloved coworker outside the room

C) environmental services only

D) the same person holding first bag

25 / 50

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

A) mix bleach and ammonia for extra strength

B) open dialysate lines to air

C) spray disinfectant on the patient

D) remove clean supplies from the area

26 / 50

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

A) yank upward quickly

B) reach across patient

C) unlock mechanism before lifting

D) twist torso while pulling

27 / 50

27) 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

28 / 50

28) 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

29 / 50

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

A) Antiseptic wipes

B) Soap and water for ≥20 seconds

C) Gloved hands only

D) Alcohol-based rub

30 / 50

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

A) on the floor

B) above head level

C) between knee and shoulder height

D) behind heavy boxes

31 / 50

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

A) finish current saline return

B) silence all machine alarms

C) search for the fire source

D) remove patients from immediate danger

32 / 50

32) Routine surface disinfection between patients helps primarily to

A) break the chain of infection transmission

B) polish equipment

C) increase room humidity

D) save on deep-cleaning costs

33 / 50

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

A) Ammonia-based cleaner

B) Hydrogen peroxide

C) Quaternary ammonium wipes

D) Isopropyl alcohol

34 / 50

34) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Shoe covers only

B) Lead apron

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

D) Hairnet only

35 / 50

35) 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

36 / 50

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

A) shut down all dialysis machines immediately without assessing

B) notify supervisor and investigate for leaks

C) open all acid jugs

D) ignore; odor is normal

37 / 50

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

A) prevent cross-contamination via splashes

B) reduce noise in unit

C) keep staff warm

D) comply with dress code

38 / 50

38) Gloves should be changed

A) once per hour

B) after lunch break

C) only when torn

D) between every patient contact

39 / 50

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

A) save tubing for reuse

B) shorten treatment

C) lower noise level

D) prevent blood exposure to environment

40 / 50

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

A) vinegar solution

B) EPA-registered disinfectant

C) plain alcohol

D) tap water

41 / 50

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

A) dangle freely

B) cross at ankles

C) press on chair ring only

D) rest flat on floor

42 / 50

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

A) 3 minutes

B) 15 minutes

C) 30 seconds

D) 1 minute

43 / 50

43) Before cleaning a blood spill, staff must don

A) no PPE if spill is small

B) surgical cap only

C) shoe covers only

D) gloves and eye/face protection

44 / 50

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

A) alcohol spray

B) baking soda solution if facility protocol allows

C) plain water only

D) extra bleach solution

45 / 50

45) 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

46 / 50

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

A) open-toe sandals

B) cloth slippers

C) closed-toe, non-skid shoes

D) high-heeled boots

47 / 50

47) Emergency eyewash stations must be checked

A) once per year

B) weekly per facility policy

C) monthly if time permits

D) only after an incident

48 / 50

48) Which practice prevents back injury during patient repositioning?

A) Reaching over bed rails with arms extended

B) Keeping patient close to body and using slide sheet

C) Stopping midway to adjust grip

D) Lifting alone regardless of weight

49 / 50

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

A) drink water

B) be moved to fresh air

C) lie flat in same area

D) take deep breaths of the chemical

50 / 50

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

A) taped to floor

B) removed or swung aside first

C) used as leverage points

D) left in place for speed

Your score is

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