Final answer:
The nurse should conduct informant interviews as the first action in addressing a suspected outbreak of scabies in the local area.
Step-by-step explanation:
The first action that the nurse should take to address a suspected outbreak of scabies in the local area is to conduct informant interviews. Informant interviews involve speaking with individuals who may have information about the outbreak, such as those who have been affected or have knowledge of affected individuals. By conducting these interviews, the nurse can gather important information about the potential scope of the outbreak, identify common factors or locations, and take appropriate measures to prevent further spread of scabies.