Final answer:
A medical assistant must report indications of child abuse immediately to a supervisor and follow up with the proper authorities as they are mandated reporters.
Step-by-step explanation:
When a medical assistant measures the vital signs of a 10-year-old child and recognizes indications of abuse, the medical assistant has a responsibility to take action. The medical assistant should immediately report their findings to a supervisor or a healthcare provider who can further assess the situation. Furthermore, because medical professionals are mandated reporters, they are legally required to report any suspicions of child abuse to the proper authorities, often Child Protective Services or the police, depending on the jurisdiction. Medical assistants should also be familiar with their workplace's protocol for such situations to ensure the proper steps are taken without delay. It is crucial that these reports are made in a timely manner to protect the child and provide the necessary support and intervention.