What is the final step in applying a CAT tourniquet?

The final step in applying a CAT (Combat Application Tourniquet) tourniquet is to record the time applied. This is critical because the time annotation provides essential information for medical providers regarding how long the tourniquet has been in place. Prolonged use of a tourniquet can lead to complications, including tissue damage due to lack of blood flow. By documenting the time, emergency medical personnel can make informed decisions about further treatment upon arrival at the medical facility, ensuring the patient's safety and minimizing potential complications.

While checking tourniquet tightness, lifting the limb to reduce swelling, and performing a secondary survey are important steps in the overall management of a trauma patient, they do not represent the final step in the application of a tourniquet. Checking tightness ensures the tourniquet is effective, lifting the limb can help manage swelling but is not specific to tourniquet application, and performing a secondary survey is a part of the broader assessment that follows the immediate interventions. Therefore, recording the time applied is paramount after securing the tourniquet, highlighting the importance of accurate communication in emergency medical care.