In the area of two to four inches above the wound. The everpresent Corpsman will be their momentarily. He is busy at the moment with a sucking chest wound.
It's placed above the injury site
yes
Tourniquets are dangerous when used improperly, such as having them applied too long, as they restrict blood flow to the extremity or limb, therefore resulting in failure of that limb or extremity.
strain
It is placed 2 to 4 inches above the wound.
The decoration soldiers receive for a combat injury is the Purple Heart
closed injury with distal pulse
A lightly applied tourniquet is used to engorge your veins prior to venipuncture. While a tourniquet can be used to stop catastrophic blood loss, it rarely is used for this and probably should be used less than it is. Here's why: If you have a bleeding forearm, a tourniquet proximal to the wound can be cranked down to stop ALL bloodflow. The good news is the bleeding has stopped. The bad news is all the blood distal to the tourniquet is quickly deoxygenating, and the blood and the tissue it was feeding is now in the process of dying. So are agents of the immune system in that area. And, as there's an open wound, the risk if infection is high, and increases every second. There quickly comes a point where the contents of the forearm below the tourniquet are quite septic. At this time, releasing the tourniquet floods a compromised body with a surprisingly heavy bacterial and viral load as well as a quantity of deoxygenated blood which will oxygenate very quickly indeed, which is clearly undesirable. The alternative is amputation. If there were no alternative, we could discuss this in sepulchral tones and figure we're saving a life at the cost of a limb. But we aren't. Nearly ANY wound on an extremity can be controlled by direct pressure. This includes guillotine amputations and a variety of other horrors. I imagine that somewhere out there, there's a wound so bad that I'd need to tourniquet it, but then I'd have to wonder if even a tourniquet would be enough? At that rarified point, there may be no good answer. In short, once the staple of battlefield medicine, the tourniquet is rarely used in a first aid context except for venipuncture nowadays.
An armbar is a joint lock where the elbow is hyperextended in order to cause pain or injury in combat sports.
These sprains are characterized by obvious swelling, localized tenderness, pain , joint laxity, difficulty bearing weight if the injury is to a lower extremity, and reduced function of the joint.
If someone is working in an active war zone or combat area, injury or death is a possibility.
Depending on the injury, various items can be used. For a serious bleeding wound, vines or other fibrous plants could be used for a tourniquet. Leaves could be used to cover abrasions to keep them from further injury or contamination with dirt. The only limit is your imagination.