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

A) Chemical hygiene

B) Unobstructed access to emergency equipment

C) Proper body mechanics

D) Standard precautions

2 / 50

2) 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) 12 in (30 cm)

D) 24 in (61 cm)

3 / 50

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

A) disconnect themselves

B) run for the exit

C) stay seated and protect head/neck

D) pull fire alarm

4 / 50

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

A) Varicella

B) Typhoid

C) Influenza

D) Cholera

5 / 50

5) 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

6 / 50

6) To prevent trip hazards, electrical cords should be

A) coiled loosely on floor

B) run across aisles

C) hidden under rugs

D) secured and kept out of walkways

7 / 50

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

A) reused without rinsing

B) thrown in regular trash dry

C) stored wet in closet

D) rinsed, then placed in designated disinfectant bin

8 / 50

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

A) 50 mL bleach in 50 mL water

B) 1 mL bleach in 10 mL water

C) 5 mL bleach in 500 mL water

D) 10 mL bleach in 990 mL water

9 / 50

9) Sharps containers should be replaced when they are

A) half full

B) ¾ full

C) emptied each week regardless of level

D) completely full to the top

10 / 50

10) Each chemical container must include

A) patient ID

B) a legible manufacturer label with hazard pictograms

C) price stickers

D) handwritten abbreviations only

11 / 50

11) A patient with known MRSA should be seated

A) beside immune patients

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

C) anywhere in the row

D) in staff lounge

12 / 50

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

A) Gloved hands only

B) Soap and water for ≥20 seconds

C) Antiseptic wipes

D) Alcohol-based rub

13 / 50

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

A) drink water

B) lie flat in same area

C) be moved to fresh air

D) take deep breaths of the chemical

14 / 50

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

A) vinegar solution

B) EPA-registered disinfectant

C) tap water

D) plain alcohol

15 / 50

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

A) carry at shoulder height

B) hug with one arm

C) use a rolling cart rather than carrying by hand

D) drag along the floor

16 / 50

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

A) dry paper towels for 30 minutes, then removed

B) absorbent towels soaked in bleach

C) coffee filters

D) alcohol swabs only

17 / 50

17) Routine surface disinfection between patients helps primarily to

A) save on deep-cleaning costs

B) increase room humidity

C) break the chain of infection transmission

D) polish equipment

18 / 50

18) The CDC recommends alcohol hand rub contain at least

A) 30 % alcohol

B) 40 % alcohol

C) 60 % alcohol

D) 20 % alcohol

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) 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

21 / 50

21) 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) open dialysate lines to air

D) remove clean supplies from the area

22 / 50

22) Vaccination considered MANDATORY for dialysis staff is

A) Rabies

B) Yellow fever

C) Hepatitis B series

D) Smallpox

23 / 50

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

A) remove patients from immediate danger

B) silence all machine alarms

C) finish current saline return

D) search for the fire source

24 / 50

24) 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

25 / 50

25) An HBsAg-positive patient must be dialyzed

A) first shift each morning

B) on any available machine after wipe-down

C) on a dedicated machine in an isolation area

D) next to another hepatitis B-positive patient only

26 / 50

26) 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

27 / 50

27) Food and drink in the treatment area are

A) allowed for staff only

B) mandatory for diabetic patients

C) prohibited to avoid contamination

D) stored under dialysis machines

28 / 50

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

A) continue barehanded

B) tape the tear and keep working

C) perform hand hygiene and don new gloves

D) ask another technician to finish

29 / 50

29) Chemical Safety Data Sheets (SDS) must be

A) readily accessible to all staff at all times

B) discarded after 30 days

C) sent home with patients

D) locked in manager’s office

30 / 50

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

A) ignore; odor is normal

B) notify supervisor and investigate for leaks

C) open all acid jugs

D) shut down all dialysis machines immediately without assessing

31 / 50

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

A) 1 minute

B) 15 minutes

C) 5 minutes

D) 30 seconds

32 / 50

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

A) bend at the waist

B) twist while lifting for leverage

C) keep back straight and lift with legs

D) hold box away from the body

33 / 50

33) 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) Reaching over bed rails with arms extended

D) Lifting alone regardless of weight

34 / 50

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

A) keep staff warm

B) comply with dress code

C) prevent cross-contamination via splashes

D) reduce noise in unit

35 / 50

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

A) a linen hamper

B) an open wire basket

C) regular trash bags

D) a dedicated, leak-proof, labeled container

36 / 50

36) 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

37 / 50

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

A) 15 minutes

B) 30 seconds

C) 3 minutes

D) 1 minute

38 / 50

38) Proper disposal for used PPE contaminated with blood is

A) sharps container

B) red biohazard bag

C) recycle bin

D) regular trash

39 / 50

39) Gloves should be changed

A) once per hour

B) between every patient contact

C) only when torn

D) after lunch break

40 / 50

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

A) high-heeled boots

B) closed-toe, non-skid shoes

C) cloth slippers

D) open-toe sandals

41 / 50

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

A) bare hands for better grip

B) the same person holding first bag

C) environmental services only

D) a clean-gloved coworker outside the room

42 / 50

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

A) save tubing for reuse

B) shorten treatment

C) prevent blood exposure to environment

D) lower noise level

43 / 50

43) Emergency eyewash stations must be checked

A) weekly per facility policy

B) only after an incident

C) once per year

D) monthly if time permits

44 / 50

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

A) baking soda solution if facility protocol allows

B) extra bleach solution

C) plain water only

D) alcohol spray

45 / 50

45) 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

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) A splash to the eyes with dialysate requires

A) applying antibiotic ointment

B) closing eyes tightly and waiting

C) notifying biomedical only

D) immediate flush at eyewash station for ≥15 minutes

48 / 50

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

A) twist torso while pulling

B) yank upward quickly

C) unlock mechanism before lifting

D) reach across patient

49 / 50

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

A) used as leverage points

B) left in place for speed

C) taped to floor

D) removed or swung aside first

50 / 50

50) 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

Your score is

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