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

0%

37

CCHT Environment Practice Test

1 / 50

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

A) 30 seconds

B) 15 minutes

C) 5 minutes

D) 1 minute

2 / 50

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

A) between knee and shoulder height

B) above head level

C) behind heavy boxes

D) on the floor

3 / 50

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

A) coffee filters

B) alcohol swabs only

C) dry paper towels for 30 minutes, then removed

D) absorbent towels soaked in bleach

4 / 50

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

A) regular trash bags

B) a linen hamper

C) a dedicated, leak-proof, labeled container

D) an open wire basket

5 / 50

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

A) open dialysate lines to air

B) spray disinfectant on the patient

C) remove clean supplies from the area

D) mix bleach and ammonia for extra strength

6 / 50

6) Vaccination considered MANDATORY for dialysis staff is

A) Smallpox

B) Hepatitis B series

C) Rabies

D) Yellow fever

7 / 50

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

A) Hydrogen peroxide

B) Quaternary ammonium wipes

C) Ammonia-based cleaner

D) Isopropyl alcohol

8 / 50

8) Proper disposal for used PPE contaminated with blood is

A) red biohazard bag

B) regular trash

C) sharps container

D) recycle bin

9 / 50

9) 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

10 / 50

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

A) shut down all dialysis machines immediately without assessing

B) open all acid jugs

C) notify supervisor and investigate for leaks

D) ignore; odor is normal

11 / 50

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

A) run for the exit

B) stay seated and protect head/neck

C) pull fire alarm

D) disconnect themselves

12 / 50

12) Which practice prevents back injury during patient repositioning?

A) Keeping patient close to body and using slide sheet

B) Reaching over bed rails with arms extended

C) Lifting alone regardless of weight

D) Stopping midway to adjust grip

13 / 50

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

A) wash area with soap and water

B) remove gloves next shift

C) complete incident report only

D) apply bandage without washing

14 / 50

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

A) use a rolling cart rather than carrying by hand

B) carry at shoulder height

C) drag along the floor

D) hug with one arm

15 / 50

15) Gloves should be changed

A) between every patient contact

B) only when torn

C) once per hour

D) after lunch break

16 / 50

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

A) dangle freely

B) press on chair ring only

C) cross at ankles

D) rest flat on floor

17 / 50

17) The CDC recommends alcohol hand rub contain at least

A) 20 % alcohol

B) 60 % alcohol

C) 40 % alcohol

D) 30 % alcohol

18 / 50

18) The correct order for removing PPE is typically

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

B) gown → mask → gloves

C) mask → gown → gloves

D) face shield → mask → gloves → gown

19 / 50

19) 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

20 / 50

20) Before cleaning a blood spill, staff must don

A) surgical cap only

B) no PPE if spill is small

C) shoe covers only

D) gloves and eye/face protection

21 / 50

21) A patient with known MRSA should be seated

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

B) beside immune patients

C) in staff lounge

D) anywhere in the row

22 / 50

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

A) keep staff warm

B) comply with dress code

C) reduce noise in unit

D) prevent cross-contamination via splashes

23 / 50

23) To prevent trip hazards, electrical cords should be

A) hidden under rugs

B) run across aisles

C) secured and kept out of walkways

D) coiled loosely on floor

24 / 50

24) 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) continue barehanded

D) tape the tear and keep working

25 / 50

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

A) 10 mL bleach in 990 mL water

B) 50 mL bleach in 50 mL water

C) 1 mL bleach in 10 mL water

D) 5 mL bleach in 500 mL water

26 / 50

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

A) drink water

B) take deep breaths of the chemical

C) lie flat in same area

D) be moved to fresh air

27 / 50

27) 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

28 / 50

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

A) 15 minutes

B) 1 minute

C) 30 seconds

D) 3 minutes

29 / 50

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

A) Cholera

B) Influenza

C) Typhoid

D) Varicella

30 / 50

30) Chemical Safety Data Sheets (SDS) must be

A) sent home with patients

B) locked in manager’s office

C) readily accessible to all staff at all times

D) discarded after 30 days

31 / 50

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

A) stored wet in closet

B) reused without rinsing

C) rinsed, then placed in designated disinfectant bin

D) thrown in regular trash dry

32 / 50

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

A) tap water

B) plain alcohol

C) EPA-registered disinfectant

D) vinegar solution

33 / 50

33) 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

34 / 50

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

A) finish current saline return

B) remove patients from immediate danger

C) silence all machine alarms

D) search for the fire source

35 / 50

35) Routine surface disinfection between patients helps primarily to

A) save on deep-cleaning costs

B) break the chain of infection transmission

C) increase room humidity

D) polish equipment

36 / 50

36) Sharps containers should be replaced when they are

A) completely full to the top

B) ¾ full

C) emptied each week regardless of level

D) half full

37 / 50

37) An HBsAg-positive patient must be dialyzed

A) on a dedicated machine in an isolation area

B) first shift each morning

C) next to another hepatitis B-positive patient only

D) on any available machine after wipe-down

38 / 50

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

A) prevent blood exposure to environment

B) save tubing for reuse

C) shorten treatment

D) lower noise level

39 / 50

39) Which PPE item is REQUIRED during dialyzer reprocessing?

A) Lead apron

B) Hairnet only

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

D) Shoe covers only

40 / 50

40) 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

41 / 50

41) Each chemical container must include

A) a legible manufacturer label with hazard pictograms

B) price stickers

C) handwritten abbreviations only

D) patient ID

42 / 50

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

A) bare hands for better grip

B) environmental services only

C) the same person holding first bag

D) a clean-gloved coworker outside the room

43 / 50

43) 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

44 / 50

44) Food and drink in the treatment area are

A) stored under dialysis machines

B) prohibited to avoid contamination

C) allowed for staff only

D) mandatory for diabetic patients

45 / 50

45) Emergency eyewash stations must be checked

A) monthly if time permits

B) weekly per facility policy

C) only after an incident

D) once per year

46 / 50

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

A) high-heeled boots

B) cloth slippers

C) closed-toe, non-skid shoes

D) open-toe sandals

47 / 50

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

D) mark exits with yellow tape only

48 / 50

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

A) extra bleach solution

B) alcohol spray

C) baking soda solution if facility protocol allows

D) plain water only

49 / 50

49) 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

50 / 50

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

A) 12 in (30 cm)

B) 36 in (91 cm)

C) 24 in (61 cm)

D) 30 in (76 cm)

Your score is

See also: