Case Study: Kel Student Name Affiliation Course Instructor Due Date Case study: Kel Presenting Problems Kel exhibits a wide range of problematic symptoms suggestive of a serious mental health problem, such as severe depression symptoms, which include unwavering melancholy and hopelessness, interest loss in once-enjoyed hobbies, and functional impairment. She also has a severe lack of energy and acute weariness, which interferes with her day-to-day activities, including employment and self-care. The severity of her disease is further highlighted by the significant weight loss she experienced over two months due to a decreased appetite, social separation from friends and coworkers, neglectful communication, work impairment as a certified public accountant, and excessive sleep combined with chronic weariness. These signs indicate a severe and complicated major depression disorder (MDD). Primary and Differential Diagnosis It is critical to evaluate a primary diagnosis and differential diagnoses during the diagnostic procedure to ensure a complete picture of Kel's mental health situation. According to the DSM-5 criteria, Kel's major diagnosis is Major Depressive Disorder (MDD). Kel has several classic MDD symptoms, including a prolonged and severe low temperament, forfeiture of interest in earlier liked actions, significant weight loss, exhaustion, social withdrawal, decreased work performance, and sleep difficulties. These symptoms match the MDD diagnosis, and the severity of her condition and its duration necessitates quick attention and management. While MDD is the primary identification, it is critical to deliberate discrepancy diagnoses to rule out other potential illnesses that may present with similar symptoms. Bipolar Disorder is considered, but it is less likely because Kel has no history of manic or hypomanic episodes. Dysthymic Disorder, characterized by persistent, less severe symptoms over a longer time, is also considered, although Kel's symptoms are noticeably severe and incapacitating (Melrose, 2019). Adjustment Disorder, connected to specific stresses, is a possible alternate diagnosis, but it is less plausible given Kel's symptoms' persistence and intensity. Her severe Major Depressive Disorder is still treated with evidence-based treatments and strategies.