A nurse in an emergency department (ED) is assessing a preschooler who has a fractured arm. For which of the following should the nurse further investigate as a warning sign of child maltreatment?

The guardian wants to accompany the child from the ED to the radiology department.

The guardian states the child fell off the swing in the backyard.

The child cries loudly when their arm is moved or manipulated.

The child was brought to the ED 2 days after the injury occurred.