CNA Certification (Written Exam)Infection Control and SafetyEasy
A new nurse aide is washing hands with soap and water before a meal service. Which action is part of the correct handwashing technique?
- AUse hot water only to reduce germs faster
- BRinse hands quickly without using soap if hands appear clean
- CRub hands together vigorously, covering all surfaces including between fingers and under nails
- DTurn off the faucet with bare hands immediately after rinsing
Show answer & explanationAnswer & explanation
Correct answer: C. Rub hands together vigorously, covering all surfaces including between fingers and under nails
Proper handwashing requires vigorous friction covering all surfaces of the hands, including between fingers, under nails, and the backs of hands, for at least 20 seconds.
Why the other options are wrong
- A. Water temperature does not need to be hot; comfortable temperature is fine.
- B. Soap is required even if hands appear visibly clean, as pathogens can be invisible.
- D. Bare hands touching the faucet can recontaminate clean hands; a paper towel should be used.
Handwashing Technique
The correct method of washing hands with soap and water, including friction over all hand surfaces for at least 20 seconds.
- Wet hands, apply soap, scrub 20 seconds
- Include between fingers, under nails, backs of hands
- Use paper towel to turn off faucet
Memory trick: Scrub every nook, like reading a book, for 20 seconds it took.