What is a key consideration when using improvised materials for direct pressure on a wound?

Using clean materials when applying direct pressure to a wound is critical because it significantly reduces the risk of infection. When pressure is applied to control bleeding, any contaminants present on the material can be introduced into the wound, potentially leading to an infection. This is particularly important in tactical and austere environments where the risk of infection may already be heightened due to the nature of wounds and the surrounding conditions.

Ensuring that the materials are clean not only promotes a better healing environment but also aligns with the overall principles of wound care. In emergency scenarios, implementing basic hygiene practices, even when using improvised materials, can make a substantial difference in patient outcomes. The other considerations, such as the weight or durability of the materials, are less critical than maintaining a clean environment for a wound.