David Zonies, M.D., M.P.H., demonstrates how to stop bleeding by applying a tourniquet. (OHSU) 

David Zonies, M.D., M.P.H., demonstrates how to stop bleeding by applying a tourniquet. (OHSU) 

A patient arrives at OHSU Hospital. (OHSU)

A patient arrives at OHSU Hospital. (OHSU)

Wall-mounted bleeding control station. (Bleedingcontrol.org)

Personal bleeding control kit. (Bleedingcontrol.org)

Personal bleeding control kit. (Bleedingcontrol.org)

Stop the bleed logo.

A Life Flight Network helicopter takes off from OHSU Hospital. (OHSU)

David Zonies, M.D., M.P.H., demonstrates how to stop bleeding by stuffing a wound with gauze. (OHSU)