Are tourniquets only used to stop bloodflow?
Basically you only use a Tourniquet on a hemmorhage/bleeding that you can't stop.
However, on medium sized bleedings, you need to use a bandage and apply a lot of preassure (for example you do the knot on top of the wound). Wouldn't it make sense to put a cat tourniquet over that spot, and tighten it only a bit (but not all the way), to add some extra pressure?
Normally you would first put down a layer of gauze-bandage, before covering the wound up with a cover-bandage.
Wouldn't it make sense to do this with a SWAT-T (Tourniquet) instead? To add some extra pressure, when covering it?
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Yes, tourniquets are used to creating pressure like you said. But stopping bleedings is not only function of tourniquets. Medical professionals use it also to finding a vessel for taking some blood; because when it is tied to your arm, it will squeeze your vessels in that area. So, the pressure in vessels which front of the tourniquet will be increased; and than that pressure will cause that dilatation of those vessels.
In this way, those vessels will be getting more visible from your arm surface. Then medical professionals find easily a vessel in order to taking some blood.
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