What should a clinician do at the first indication of a hematoma?

When a hematoma occurs, it is essential to address it immediately to minimize bleeding and complications. Applying pressure to the area is the most effective first response. This approach helps constrict the blood vessels, reducing further bleeding and allowing the body to manage the formed hematoma more effectively.

In addition to applying pressure, other measures can be taken after the initial response, such as applying ice to help control swelling or cautions regarding movement of the affected area. However, those actions are secondary and not the immediate priority. Alerting the patient to avoid movement could be relevant in some contexts, but it doesn't directly address the bleeding. Administering additional anesthetic is not appropriate as it could worsen the situation by increasing bleeding and swelling.

In summary, applying pressure is the immediate, most effective response to mitigate the effects of a hematoma as it directly addresses the source of bleeding.