What should you do in case of a cut?

Applying direct pressure using a sterile dressing is the appropriate and effective response in the case of a cut. This action helps control bleeding and minimizes the risk of infection by covering the wound with a clean barrier. The pressure applied can help to stop blood flow and prevent further bleeding, especially in deeper cuts.

Using a sterile dressing is crucial as it reduces the chance of introducing bacteria into the wound, which can lead to infection. It also serves to protect the area from external contaminants while it begins to heal. Proper wound care is essential in managing cuts effectively, ensuring that healing occurs without complications.

Other options might not provide adequate care. Leaving a cut open to air can expose it to pathogens and increase the risk of infection. Washing it under running water for several minutes is useful to clean a wound, but it doesn't address bleeding. Applying a band-aid without cleaning the cut neglects an essential step in proper wound care, which can lead to contamination and infection.