Army Deployed Medical Practice Test

Removing debris and reducing bacterial contamination is the main purpose of wound irrigation in the field. Flushing the wound with sterile solution helps lift dirt, sand, and dead tissue from the surface, and dilutes bacteria that may be present, which lowers the risk of infection and supports better healing. It’s not meant to sterilize the wound completely—microorganisms can remain despite irrigation. Irrigation also isn’t used to stop bleeding by itself or to seal the wound; controlling bleeding requires direct pressure or other hemostatic methods, and sealing would trap contaminants. In practice, use clean sterile saline, deliver a steady, adequate flow to flush debris without tissue injury, and prepare the wound for dressing and potential later closure.