USMLE Step 1 Quiz
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MICROBIOLOGY
Question 1 of 20
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A 50-year-old woman with a history of recurrent urinary tract infections is admitted to the ICU with fever, tachycardia, hypotension (BP 75/40 mmHg), and altered mental status. Blood cultures grow a Gram-negative rod. Her severe systemic inflammatory response is triggered by a component of the bacterial outer membrane.
Which specific molecular component is the primary mediator of septic shock in this patient?
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