A 64-year-old man comes to the office due to 2 days of dysuria, urinary frequency, and urgency. He recently underwent a cystoscopy for evaluation of hematuria. The patient has a history of hypertension, type 2 diabetes mellitus, and 30 pack-years of cigarette smoking. His temperature is 38.2 C (100.8 F). On examination, there is suprapubic tenderness on deep palpation but no costovertebral angle tenderness. Urinalysis findings are as follows: Midstream urine culture grows gram-positive cocci in chains with growth 100,000 colony-forming units/mL. The organism responsible for this patient's condition is most likely to demonstrate which of the following?

Question

A 64-year-old man comes to the office due to 2 days of dysuria, urinary frequency, and urgency.  He recently underwent a cystoscopy for evaluation of hematuria.  The patient has a history of hypertension, type 2 diabetes mellitus, and 30 pack-years of cigarette smoking.  His temperature is 38.2 C (100.8 F).  On examination, there is suprapubic tenderness on deep palpation but no costovertebral angle tenderness.  Urinalysis findings are as follows:  Midstream urine culture grows gram-positive cocci in chains with growth >100,000 colony-forming units/mL.  The organism responsible for this patient's condition is most likely to demonstrate which of the following?

Quizplus · Accepted Answer

Eductional Objective: Enterococcus is an important cause of urinary tract infections.  These organisms are gram-positive cocci in pairs and chains and, when grown on blood agar, they do not cause hemolysis (gamma-hemolytic).

A 64-Year-Old Man Comes to the Office Due to 2