Mood disorders Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 57-year-old man is brought to his primary care physician by his sister for evaluation of depressed mood over the past year. The patient lost his spouse in a car accident 18 months ago when she was driving alone, and since then he has become withdrawn and socially isolated. The patient frequently states, “I could have prevented her death.” He feels intense guilt, stating, “I should have been more protective of her.” He has no changes in appetite, sleep disturbance, or suicidal ideation. He reports difficulty concentrating at work as a store manager and has had to take multiple days off due to poor performance. He has stopped golfing with his friends, an activity he previously enjoyed. Which of the following is the most likely diagnosis?  

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