tourniquet


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tourniquet

(to͝or`nĭkĕt, –kā, tûr`–), compression device used to cut off the flow of blood to a part of the body, most often an arm or leg. It may be a special surgical instrument, a rubber tube, a strip of cloth, or any flexible material that can be tightened to exert pressure. Compression should not be maintained for more than 20 min at a time because of the danger of congestion and gangrene. In cases of a bleeding emergency, a tourniquet is used to stop the flow of blood if other means, e.g., the application of a pressure bandage to the wound, are not effective. In arterial hemorrhage (bright red blood spurting out in jets) the tourniquet is applied above the wound, i.e., between the wound and the heart. In hemorrhage from a vein (an even flow of dark red blood) the tourniquet is applied below the wound, i.e., away from the heart.

Tourniquet

 

an elastic rubber tube (tape, bandage, cuff, and the like) for temporarily stopping hemorrhage when there is a wound or during an operation.

The various types of tourniquets used are based on constricting the extremities. A properly applied tourniquet must constrict the arterial trunks, otherwise hemorrhage is intensified owing to cessation of outflow of venous blood. A tourniquet is applied either on clothing or on a layer of cloth (a towel). The more elastic the tourniquet, the less it traumatizes the body tissues. A tourniquet is applied for no longer than two hours; during that time it should be loosened two or three times (more often in winter) to restore the circulation. (The artery should be pressed with a finger when the tourniquet is loosened.)

tourniquet

[′tu̇r·nə·kət]
(medicine)
An apparatus for controlling hemorrhage from, or circulation in, a limb or part of the body, where pressure can be brought upon the blood vessels by means of straps, cords, rubber tubes, or pads.

tourniquet

Med any instrument or device for temporarily constricting an artery of the arm or leg to control bleeding
References in periodicals archive ?
If you find a hair tourniquet on a boy's private parts, or if a finger or toe is discoloured, then you should seek medical assistance.
Always have a marker, such as a sharpie, for your tourniquet.
Tinel's test (T) was done for all patients and then for patients who had negative Tinel's were subjected to Tourniquet Test (TT) and those for whom symptoms did not appear were again subjected to Tinel's Test with Tourniquet (T1TJ.
This partnership follows tourniquet guidance from the International Committee on Resuscitation (ILCOR) standards and recommendations from the Red Cross Scientific Advisory Council who looked at tourniquet and performance characteristics.
Results: Diagnostic accuracy of tourniquet test for diagnosis of dengue infection in patients with clinically suspected dengue fever, keeping dengue IgM/IgG as gold standard showed 26.
The Echo-Sigma kit includes a combat tourniquet, Celox hemostatic gauze, a 6-inch emergency trauma dressing, compressed gauze, tape, gloves, and shears.
The court heard she called an ambulance for her victim, applied a tourniquet to his leg then fled the scene.
Hair-thread tourniquet syndrome is an emergency condition rarely encountered since its first description in Lancet in 1832, and it may be potentially dangerous unless treated.
9,10) In a second laboratory study of improvised tourniquets, the commercial Combat Application Tourniquet (CAT) was a control for the US Army improvised tourniquet and a bandana-windlass tourniquet; CAT performed fastest (P<0001, both), but both improvised techniques were not statistically different from each other.
The tourniquet was applied and the operation was started when the sensorial block level reached T10 dermatome.
Keywords: Necrosis, prematurity, hair-thread tourniquet syndrome
The folding sutures following tourniquet binding is a conservative surgical approach for placenta previa combined with the morbidly adherent placenta.