What should you do if a victim is vomiting while in shock?

When a victim is vomiting while in shock, turning them to their side is the best response because it helps to prevent choking. If a person vomits while lying flat on their back, there's a significant risk that they could inhale vomit into their lungs, leading to aspiration pneumonia or other serious complications. By placing the victim on their side, it allows any expelled contents to exit the mouth without obstructing the airway, maintaining a clearer passage for breathing.

This action also helps minimize additional strain on the body, which can be particularly important for someone already in shock, as it may further stabilize their condition. The other options do not provide the same level of safety or efficacy in managing the situation. For example, leaving the victim in the current position fails to address the risk of choking, while holding their head up or applying pressure to the stomach does not effectively protect their airway during vomiting.