Nevada Certified Nursing Assistant (CNA) Practice Exam

The proper technique for handwashing involves using soap and water and ensuring that hands are lathered for at least 20 seconds. This duration is crucial because it allows sufficient time for the soap to break down and remove dirt, bacteria, and viruses from the skin. The mechanical action of scrubbing, combined with the soap, effectively helps to detach pathogens from the skin's surface, making them easier to rinse away.

Handwashing is a key practice for preventing the spread of infections, as it reduces the number of microorganisms present on the hands. Using soap not only aids in cleaning but also plays a vital role in inhibiting the growth of viruses and bacteria. Proper rinsing afterwards further helps eliminate any remaining pathogens and soap residue.

In contrast, relying solely on hand sanitizer does not achieve the same level of cleanliness, especially when hands are visibly dirty. Quickly washing hands for just 5 seconds is insufficient time to effectively remove harmful pathogens. Similarly, rinsing hands in cool water after applying soap without allowing enough time for effective lathering fails to adequately clean the hands. Thus, the method of lathering for a minimum of 20 seconds using soap and water is key to maintaining proper hygiene and infection control.