What steps should you take to care for a minor wound?

From a first aid point of view, there is not much a first aider can do. Furthermore, a first aider cannot be certain that the internal bleeding is only minor (unless it is a contusion).

In the case of suspected internal injury, treat the patient for hypovolemic shock, keep them warm and call an ambulance for medical treatment.

If the injury is minor, in the case of a minor contusion, apply an ice pack, elevate if it is a limb, compress by applying a bandage and refer the patient to a medical professional if the condition is doubtful.