#may2020mccqe1
A 42-year-old woman presents to her physician because of recent urinary tract infections (UTIs). She has been on an unknown oral antibiotic chronically. She has a temperature of 37.2 C (99 F), and costovertebral angle tenderness is noted on the left side. A plain film of the abdomen reveals a radiopaque density filling the left renal pelvis and calyces. Which of the following is the most likely pathogen?
(A) Bacteroides fragilis
(B) Clostridium difficile
(C) Escherichia coli
(D) Proteus mirabilis
(E) Streptococcus bovis
A 42-year-old woman presents to her physician because of recent urinary tract infections (UTIs). She has been on an unknown oral antibiotic chronically. She has a temperature of 37.2 C (99 F), and costovertebral angle tenderness is noted on the left side. A plain film of the abdomen reveals a radiopaque density filling the left renal pelvis and calyces. Which of the following is the most likely pathogen?
(A) Bacteroides fragilis
(B) Clostridium difficile
(C) Escherichia coli
(D) Proteus mirabilis
(E) Streptococcus bovis
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