Staphylococcus epidermidis 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 75-year-old man presents to the cardiologist's office for a follow-up visit after placement of a dual chamber pacemaker three weeks ago for heart failure. The patient’s hospital course was uncomplicated, but the patient is now complaining of worsening dyspnea on exertion, malaise, and fevers. He has a history of mitral valve replacement due to rheumatic heart disease at the age of 55. Temperature is 38.1°C (100.6°F), pulse is 98/min, respirations are 18/min, and blood pressure is 146/73 mmHg. Physical examination demonstrates a holosystolic murmur best heard at the apex. There is a surgical incision site over the lateral chest wall without evidence of erythema, discharge, or swelling. Small, subcutaneous, tender nodules on the left hand are demonstrated below:  

A hand w/ dark, mottled burn marks across the palm & fingers. The skin appears discolored and damaged, concentrated on the center of the palm and extending to the base of the fingers. 
Reproduced from: Wikipedia

Blood is drawn and sent for culture. Three days later, 3 of 4 blood cultures obtained on admission grow Gram-positive, coagulase-negative bacteria. Which of the following virulence factors of this organism is implicated in this patient’s disease process?    

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