b. Apply the Combat Application Tourniquet, if Available. If a Combat
Application Tourniquet (CAT) is available, use it.
Remove the CAT from its pouch.
The CAT is packaged in its one-handed configuration.
(2) Slide the wounded extremity through the loop of the self-adhering band
(figure 2-13) and position the CAT at the tourniquet site (two to four inches above the
wound) (figure 2-14).
If the wound is more than four inches below the knee or elbow, initially
position the tourniquet band two to four inches above the wound. If a
tourniquet applied below the joint does not stop the bleeding, apply a
second tourniquet above the joint. Do not remove the first tourniquet
until the second tourniquet has been applied.
(3) Pull the free running end of the self-adhering band tight and securely
fasten it back on itself (figure 2-15). Do not adhere the band past the windlass clip.
(4) Adhere self-adhering band completely around the limb until the clip is
reached (figure 2-16).
Twist the windlass rod until the bright red arterial bleeding has stopped
Darker bleeding (drainage from the veins) may still continue for a while.
Lock the windlass rod in place with the windlass clip (figure 2-18).
(7) For small extremities, continue to adhere the self-adhering band
around the extremity and over the windlass rod (figure 2-19).
(8) Grasp the windlass strap, pull it tight, and adhere it to the Velcro on the
windlass clip (figure 2-20).
At this point the tourniquet is secure (figure 2-21).
(a) For added security (and always before moving a casualty) secure
the windlass rod with the windlass strap.
(b) For small extremities, also secure the self-adhering band under the
(c) It is recommended that you tape over the entire device and
windlass to further secure the tourniquet for transport.