When corrective action is needed, which of the following scenarios requires immediate attention?

The scenario involving the use of hand sanitizer instead of washing hands requires immediate attention because proper hand hygiene is crucial in food safety. While hand sanitizer can be effective in killing germs, it does not remove physical dirt, debris, or certain pathogens that are present on hands. Washing hands with soap and water is the most effective way to clean hands and reduce the risk of foodborne illness. Failing to follow proper handwashing procedures can result in contamination of food, making this issue a high priority that needs to be addressed immediately to ensure the safety of food being prepared and served.

The other scenarios, while they may still require attention, do not pose as urgent a risk to food safety. For example, wearing a wedding band may not be ideal in a food handling environment, but it does not present an immediate health risk. Similarly, wearing a clean apron and utilizing an effective hair restraint contribute to food safety, but they do not require the same level of immediate corrective action as inadequate handwashing practices.