Which of the following would stop the process of irrigation?

The process of irrigation, specifically in a combat medic context, refers to the procedure of cleansing wounds to prevent infection and promote healing. The cessation of irrigation can occur due to several critical factors.

Running out of supplies would directly halt irrigation since the medic would no longer have the necessary materials (such as sterile water or saline) to continue the cleaning process. Supplies are essential for maintaining hygiene and effectiveness in treatment.

If more than 20 minutes has elapsed since the start of irrigation, it may be deemed necessary to stop the process, as prolonged irrigation can lead to complications such as fluid loss or other adverse effects on the casualty's condition. The timing of treatment is crucial, as effective care often requires timely actions that do not extend too long without reevaluation.

Finally, when a casualty reaches a Military Treatment Facility (MTF), the responsibility for continued care, including irrigation, transfers to healthcare professionals at the facility. Once a casualty is in the hands of trained medical personnel at an MTF, the combat medic’s responsibilities shift, and therefore the irrigation process would stop.

Understanding these points clarifies why all three scenarios contribute to the cessation of the irrigation process, making the choice that encompasses all those scenarios the most comprehensive and correct answer.