Hemophilia 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 45-year-old woman presents to the primary care PA due to frequent bruising. She reports, “every time I bump into something, I develop these huge bruises.” She additionally had an episode of right knee swelling after a minor fall. Past medical history is notable for systemic lupus erythematosus and an episode of strep pharyngitis that was treated with amoxicillin. Temperature is 37.3°C (99.1°F), pulse is 82/min, respirations are 13/min, and blood pressure is 122/76 mmHg. Physical examination reveals multiple large bruises on her forearms and legs, as well as a left knee effusion. Laboratory testing is obtained and reveals the following findings:

Which of the following is the most likely etiology of this patient’s clinical presentation?  

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