Final answer:
In the initial assessment of a victim, the first thing you do after ensuring the scene is safe is to check for responsiveness and breathing.
Step-by-step explanation:
In the initial assessment of a victim, after ensuring the scene is safe, the first thing you should do is check for responsiveness. Tap the victim gently and ask if they are okay. If there is no response, you should shout for help and immediately call emergency services.
Next, you should check the victim's breathing. Place your ear close to their mouth and nose to listen and feel for any breaths. If they are not breathing, you should start CPR right away.
Once you have assessed the victim's responsiveness and breathing, you can move on to checking for any severe bleeding or other life-threatening injuries, and provide appropriate first aid until professional medical help arrives.