Which type of bandage in the FAK is 4 inches wide?

The correct answer indicates that the bandage compresses is 4 inches wide. This is significant as a 4-inch wide bandage is specifically designed to cover larger wounds and provide adequate coverage and compression to stop bleeding. In first aid, the width of the bandage is crucial, as it determines how effectively it can address various types of injuries, especially when applying pressure to control bleeding.

Other types of items listed, such as triangular bandages or adhesive tapes, serve specific purposes but do not meet the requirement of having a 4-inch width. The triangular bandage is typically used for slings or securing dressings and is not a standard bandage used for compression. Adhesive tape, while useful for securing dressings in place, is much narrower at 1 inch and does not fulfill the need for a wider compression bandage. Similarly, a 2-inch roller bandage is also narrower than what's necessary for this particular application. Understanding the appropriate sizes and functions of bandages is vital for effective first aid response.