A 20 year old male patient reports loss of interest and depressed mood during his appointment. The nurse would utilize what screening tool to further evaluate the patient?

A. MMSE: The Mini-Mental State Examination (MMSE) is primarily used to assess cognitive function and screen for dementia. While it can provide some information about a patient's cognitive status, it is not specifically designed to evaluate mood disorders or depressive symptoms. B. PHQ9: The Patient Health Questionnaire-9 (PHQ-9) is a widely used screening tool specifically designed to assess the severity of depression. It consists of nine questions related to the patient's mood, interest in activities, sleep patterns, and other symptoms of depression, making it an appropriate choice for further evaluation in this case. C. GAD7: The Generalized Anxiety Disorder 7-item scale (GAD-7) is used to assess the severity of generalized anxiety disorder. While anxiety and depression can be related, the GAD-7 is not the best tool for evaluating the depressed mood reported by the patient. D. Delirium Screening Tool: This tool is used to assess for delirium, which is an acute confusion state typically seen in hospitalized patients or those with significant medical issues. It is not applicable in evaluating depressive symptoms in a young adult.