A PMHNP is conducting a scheduled telehealth follow-up with a 38-year-old woman with major depressive disorder and PTSD. During the session, the patient becomes increasingly distressed, discloses that she has a loaded firearm in her home, and states, 'I don't think I can keep going like this much longer.' She then begins sobbing and stops responding to the PMHNP's questions. The PMHNP confirmed the patient's physical location at the start of the visit. Which of the following is the most appropriate immediate action?