Problem: A 45-year-old female with a history of depression. Assessment Finding: The patient reports feeling sad and hopeless for several weeks. She is fatigued, having difficulty concentrating, and experiencing feelings of worthlessness and guilt. She has lost weight and has a decreased appetite. Her affect is flat, and she reports having suicidal ideations. What is the priority nursing intervention for this patient? Group of answer choices Place the patient under a one-on-one observer for a safe and secure environment. Perform both a thorough mental and physical assessments. Administer a mood stabilizer and monitor for side effects. Educate the patient about her symptoms and the importance of taking her medications.