Originally Posted by PHTL 6th Ed - p 553 Wilderness Trauma Care
Hemostasis
Control of bleeding is part of the primary survey. On the street, arterial bleeding can kill. In the backcountry, however, even venous bleeding can kill, if it continues for a sufficient time; every RBC counts. Therefore, bleeding control, using standard measures such as direct pressure and elevation are as important or more important in the wilderness.
At times, however, finding a bleeding site to provide direct digital (finger) pressure over the "bleeder" (bleeding blood vessel) is no that easy. Direct digital pressure for 10 to 15 minutes is far superior to a pressure bandage at controlling bleeders.
Therefor, some wilderness EMS protocols suggest using a a pressure point or a proximal blood pressure (BP) cuff as a tourniquet for 1 or 2 minutes to control the bleeding initially. Then, after letting the BP cuff down careful, the location of the bleeder usually becomes obvious, and a gloved finger covered with a gauze pad (to prevent slipping can be carefully placed over the bleeder for 10 to 15 minutes. If the bleeder starts bleeding again, direct digital pressure for another 10 to 15 minutes almost always stops it.
Note that we are suggesting using a BP cuff tourniquet for only a few minutes. It is important to remember to let the BP cuff down and not use it by itself to stop bleeding; otherwise , the limb might develop permanent damage.
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