An officer arrives at the scene of a shooting and finds a victim with a severe, pulsating arterial bleed from their thigh. Direct pressure with gauze is not controlling the hemorrhage. What is the officer's most appropriate next action?
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A
Elevate the leg and wait for EMS to arrive.
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B
Apply a pressure dressing over the wound and monitor vital signs.
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C
Pack the wound with hemostatic gauze.
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D
Apply a tourniquet high and tight on the thigh, above the wound.