Veins: carry deoxygenated blood back to the heart.
Arteries: are muscular walled tubes forming part of the circulatory system by which pumps oxygenated blood from the heart to the body, and extremities.
Capillaries: are the final destinations of arterial blood pumped from the heart, and the starting point for venous blood back to the heart.
Life-Threatening: Bright red color (Indicates its oxygenated, thus arterial), pulsating or pumping from wound.
Potentially Life-Threatening: Steady, slow flowing, dark red in color.
Non Life-Threatening: small, slow bleed.
Improvised tourniquets are notorious for failing. However, many people still believe they can improvise a tourniquet out of just about anything. Maybe you get lucky and it works but the statistic show that 75% of improvised tourniquets fail. Your go to plan should not be to improvise a tourniquet; rather you should be prepared with a legitimate pre-hospital tourniquet.
There are tons of knock-off tourniquets sold by counterfeiters online. Take one look at E-bay or similar and you’ll see. Those tourniquets are made by counterfeiters outside of medical regulations, quality management system, quality control, and in violation of patents, and the like. $8 dollars sounds like a hell of a deal for a tourniquet that is until you are bleeding out. Be smart, don’t buy counterfeits, and don’t by from unknowns. Go to the source, there are several tourniquet manufacturers and you can find the one best suited for you.
A tourniquet should be applied 2-3” (5-8 cm) above a major bleeding wound located on an arm or leg. If you can’t quickly identify the wound, and you are in a dangerous situation there’s nothing wrong with applying the tourniquet as high and tight on the limb as possible, which is known as a hasty application. Also if one tourniquet hasn’t controlled the bleeding, get another one and put it right beside the first one.
As always mark the time of tourniquet application, and get the injured to a hospital ASAP.