Your primary survey of a casualty involved in a serious car collision shows only that he is confused. Later you find his pulse rate at 140 and weak, his skin cold and clammy and his breathing irregular and gasping. These signs, along with the mechanism of injury, indicate:

Answer & Explanation

The correct answer is Option C: Internal bleeding..

Signs of shock (tachycardia, cool/clammy skin, rapid/shallow breathing) in the context of trauma strongly suggest internal hemorrhage, which is a life-threatening condition requiring immediate medical evacuation.