A patient with advanced metastatic breast cancer is referred for palliative care. Upon initial contact, they express anger toward their physician. Which of the following is the nurse's MOST appropriate initial action?

While involving the social worker may be beneficial later on, it is not the most immediate action. The nurse's priority should be to address the patient's current emotional state directly, rather than referring them to another professional before acknowledging their feelings.

Discussing the complaint with the interdisciplinary team may be necessary at some point, but it does not address the patient's immediate emotional response. The nurse should prioritize validating the patient's feelings to ensure they feel supported rather than discussing their anger in a clinical setting.

Advocating for a change of physician may be a long-term solution if the patient continues to express dissatisfaction, but it is not an appropriate initial response. This action could further alienate the patient if they feel their feelings are not being properly acknowledged first.