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Safety infection practice questions

35 questions from the nursing assistant (cna) practice test.

Safety infection practice test

10 questions, graded as you go, with the reason for every answer. No sign-up.

What this covers

Sample questions

In which situation must hands be washed with soap and water rather than cleaned with an alcohol-based hand rub?

  1. Before entering a resident's room
  2. After touching a clean bed rail
  3. Before putting on clean gloves
  4. When the hands are visibly soiled
Show the answer

D. When the hands are visibly soiled

Alcohol rub does not work well through visible dirt or body fluids, so soiled hands are washed with soap and water. For routine contacts with hands that look clean, alcohol-based rub is acceptable.

Reference: Infection control: hand hygiene (CDC)

A nursing assistant has just removed gloves after caring for a resident who has diarrhea caused by C. difficile. How should the aide clean the hands?

  1. Wash with soap and water
  2. Use an alcohol-based hand rub
  3. Rinse with hot water only
  4. Wipe with a dry paper towel
Show the answer

A. Wash with soap and water

C. difficile forms spores that alcohol does not reliably kill; the rubbing and rinsing of a soap-and-water wash physically removes them. Alcohol rub is fine for most other situations, which is why it is the tempting wrong answer here.

Reference: Infection control: hand hygiene and C. difficile (CDC)

A nursing assistant leaving an isolation room is wearing a gown, mask, goggles and gloves. Which item is removed first?

  1. Gown
  2. Mask
  3. Goggles
  4. Gloves
Show the answer

D. Gloves

Gloves are the most contaminated item, so they come off first to avoid spreading germs to the face and clothing while the other items are removed. The mask comes off last, followed by hand hygiene.

Reference: Infection control: sequence for removing PPE (CDC)

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