42. When washing hands you should:
Answer: C
Keep hands below elbows when washing
When washing hands, it is important to keep hands below the elbows to prevent water from running down the arms and recontaminating the hands. This practice helps maintain hygiene and ensures that the cleaning process is effective.
A) use friction 5 s
Using friction for 5 seconds is not sufficient for proper handwashing. The Centers for Disease Control and Prevention (CDC) recommends scrubbing hands for at least 20 seconds to effectively remove germs and contaminants. Therefore, this option does not meet the necessary guidelines for effective hand hygiene.
B) friction unnecessary
Friction is indeed necessary for effective handwashing. It helps to physically remove dirt, bacteria, and viruses from the skin. Dismissing the need for friction undermines the effectiveness of the handwashing process, making this option incorrect.
C) keep hands < elbows
Keeping hands below the elbows is essential during handwashing. This practice prevents water from running down the arms, which can lead to the recontamination of the hands. Ensuring hands are in a position that minimizes this risk is a key aspect of proper hygiene.
D) use only cold water
Using only cold water for handwashing is not recommended. Studies indicate that warm water is more effective in removing germs and enhancing the lather of soap. Therefore, this option does not align with the best practices for hand hygiene.
Conclusion
The correct answer, keeping hands below elbows, is vital for effective handwashing as it reduces the risk of recontamination. The other options either do not meet the necessary standards for hand hygiene or contradict established guidelines, highlighting the importance of proper techniques in maintaining cleanliness.