CCHT Environment Practice Test 2026 Questions Answers

Last Updated on October 1, 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) A patient with known MRSA should be seated

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

B) in staff lounge

C) anywhere in the row

D) beside immune patients

2 / 50

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

A) cross at ankles

B) rest flat on floor

C) press on chair ring only

D) dangle freely

3 / 50

3) 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

4 / 50

4) Chemical Safety Data Sheets (SDS) must be

A) discarded after 30 days

B) sent home with patients

C) locked in manager’s office

D) readily accessible to all staff at all times

5 / 50

5) Food and drink in the treatment area are

A) prohibited to avoid contamination

B) stored under dialysis machines

C) allowed for staff only

D) mandatory for diabetic patients

6 / 50

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

A) Quaternary ammonium wipes

B) Isopropyl alcohol

C) Hydrogen peroxide

D) Ammonia-based cleaner

7 / 50

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

A) run for the exit

B) pull fire alarm

C) stay seated and protect head/neck

D) disconnect themselves

8 / 50

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

A) yank upward quickly

B) reach across patient

C) twist torso while pulling

D) unlock mechanism before lifting

9 / 50

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

A) store wheelchairs in front of the doors

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

C) mark exits with yellow tape only

D) place empty dialysate boxes in the hall temporarily

10 / 50

10) A splash to the eyes with dialysate requires

A) notifying biomedical only

B) closing eyes tightly and waiting

C) applying antibiotic ointment

D) immediate flush at eyewash station for ≥15 minutes

11 / 50

11) The correct order for removing PPE is typically

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

B) mask → gown → gloves

C) face shield → mask → gloves → gown

D) gown → mask → gloves

12 / 50

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

A) lie flat in same area

B) drink water

C) be moved to fresh air

D) take deep breaths of the chemical

13 / 50

13) Emergency eyewash stations must be checked

A) only after an incident

B) once per year

C) monthly if time permits

D) weekly per facility policy

14 / 50

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

A) 30 in (76 cm)

B) 36 in (91 cm)

C) 24 in (61 cm)

D) 12 in (30 cm)

15 / 50

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

A) closed-toe, non-skid shoes

B) cloth slippers

C) high-heeled boots

D) open-toe sandals

16 / 50

16) 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) ignore; odor is normal

D) open all acid jugs

17 / 50

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

A) Typhoid

B) Influenza

C) Cholera

D) Varicella

18 / 50

18) Proper disposal for used PPE contaminated with blood is

A) sharps container

B) red biohazard bag

C) recycle bin

D) regular trash

19 / 50

19) Which practice prevents back injury during patient repositioning?

A) Stopping midway to adjust grip

B) Reaching over bed rails with arms extended

C) Keeping patient close to body and using slide sheet

D) Lifting alone regardless of weight

20 / 50

20) The CDC recommends alcohol hand rub contain at least

A) 40 % alcohol

B) 60 % alcohol

C) 20 % alcohol

D) 30 % alcohol

21 / 50

21) Routine surface disinfection between patients helps primarily to

A) polish equipment

B) increase room humidity

C) break the chain of infection transmission

D) save on deep-cleaning costs

22 / 50

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

A) used as leverage points

B) removed or swung aside first

C) taped to floor

D) left in place for speed

23 / 50

23) Vaccination considered MANDATORY for dialysis staff is

A) Rabies

B) Yellow fever

C) Smallpox

D) Hepatitis B series

24 / 50

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

A) twist while lifting for leverage

B) keep back straight and lift with legs

C) bend at the waist

D) hold box away from the body

25 / 50

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

A) a linen hamper

B) a dedicated, leak-proof, labeled container

C) an open wire basket

D) regular trash bags

26 / 50

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

A) remove clean supplies from the area

B) open dialysate lines to air

C) spray disinfectant on the patient

D) mix bleach and ammonia for extra strength

27 / 50

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

A) prevent cross-contamination via splashes

B) comply with dress code

C) keep staff warm

D) reduce noise in unit

28 / 50

28) Sharps containers should be replaced when they are

A) ¾ full

B) half full

C) completely full to the top

D) emptied each week regardless of level

29 / 50

29) 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) first shift each morning

D) on a dedicated machine in an isolation area

30 / 50

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

A) between knee and shoulder height

B) on the floor

C) above head level

D) behind heavy boxes

31 / 50

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

A) search for the fire source

B) silence all machine alarms

C) finish current saline return

D) remove patients from immediate danger

32 / 50

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

A) EPA-registered disinfectant

B) tap water

C) plain alcohol

D) vinegar solution

33 / 50

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

A) use a rolling cart rather than carrying by hand

B) hug with one arm

C) drag along the floor

D) carry at shoulder height

34 / 50

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

A) dry paper towels for 30 minutes, then removed

B) alcohol swabs only

C) absorbent towels soaked in bleach

D) coffee filters

35 / 50

35) 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) stored wet in closet

D) reused without rinsing

36 / 50

36) 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

37 / 50

37) Each chemical container must include

A) a legible manufacturer label with hazard pictograms

B) handwritten abbreviations only

C) patient ID

D) price stickers

38 / 50

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

A) bare hands for better grip

B) environmental services only

C) a clean-gloved coworker outside the room

D) the same person holding first bag

39 / 50

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

A) 15 minutes

B) 5 minutes

C) 30 seconds

D) 1 minute

40 / 50

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

A) 3 minutes

B) 1 minute

C) 15 minutes

D) 30 seconds

41 / 50

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

A) stand hunched over the keyboard

B) type with one finger

C) keep wrists straight and elbows at 90°

D) rest forearms on hard desk edges

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) continue barehanded

D) ask another technician to finish

43 / 50

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

A) 5 mL bleach in 500 mL water

B) 50 mL bleach in 50 mL water

C) 1 mL bleach in 10 mL water

D) 10 mL bleach in 990 mL water

44 / 50

44) 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

45 / 50

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

A) complete incident report only

B) remove gloves next shift

C) wash area with soap and water

D) apply bandage without washing

46 / 50

46) Gloves should be changed

A) only when torn

B) after lunch break

C) once per hour

D) between every patient contact

47 / 50

47) 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

48 / 50

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

A) Antiseptic wipes

B) Alcohol-based rub

C) Gloved hands only

D) Soap and water for ≥20 seconds

49 / 50

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

A) shorten treatment

B) save tubing for reuse

C) prevent blood exposure to environment

D) lower noise level

50 / 50

50) Before cleaning a blood spill, staff must don

A) no PPE if spill is small

B) shoe covers only

C) gloves and eye/face protection

D) surgical cap only

Your score is

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