What should be done if a casualty exhibits signs of shock?

When a casualty shows signs of shock, administering fluids and monitoring vital signs is a vital course of action. Shock can lead to a critical drop in blood volume and pressure, which deprives organs of necessary oxygen and nutrients. Administering fluids helps to restore blood volume, improve circulation, and stabilize the patient's condition, while continuous monitoring of vital signs allows the responder to assess the effectiveness of treatment and the progression of the casualty’s condition.

Providing fluids is especially important for treating hypovolemic shock, which is often caused by severe bleeding or dehydration. In a combat or emergency scenario, it is crucial to act quickly to reinstate circulatory stability before definitive care is available. Therefore, this option rightly emphasizes both the importance of fluid administration and vigilance in tracking vital signs during the management of shock.