#january2020mccqe1
A 55-year-old man comes to his physician with a tender, swollen, and erythematous left knee. He has limited range of motion in his leg. On aspiration of the synovial fluid from his knee, the fluid is found to be yellow and cloudy and has 150,000 neutrophils/mm . Gram stain of the aspirate shows gram-positive cocci in clusters. The organism most likely responsible for this patient’s symptoms has which of the following properties?
(A) Catalase-positive and coagulase-negative
(B) Catalase-positive and coagulase-positive
(C) Glycoprotein capsule
(D) α-Hemolysis
(E) Soluble in bile
A 55-year-old man comes to his physician with a tender, swollen, and erythematous left knee. He has limited range of motion in his leg. On aspiration of the synovial fluid from his knee, the fluid is found to be yellow and cloudy and has 150,000 neutrophils/mm . Gram stain of the aspirate shows gram-positive cocci in clusters. The organism most likely responsible for this patient’s symptoms has which of the following properties?
(A) Catalase-positive and coagulase-negative
(B) Catalase-positive and coagulase-positive
(C) Glycoprotein capsule
(D) α-Hemolysis
(E) Soluble in bile
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