A 28-year-old woman comes to the emergency department because of a 6-day history of abdominal pain, fever, vomiting, and decreased appetite. Her pain started as dull and diffuse but has progressed to a sharp pain on her right side. She did not seek medical attention earlier because she has no medical insurance and "was waiting for the pain to disappear." She has no history of serious illness. She is sexually active with one male partner and uses condoms consistently. Her temperature is 38.2°C (100.8°F), pulse is 88/min, respirations are 18/min, and blood pressure is 125/75 mm Hg.There is right lower quadrant tenderness with rebound as well as a palpable mass. CT scan of the abdomen and pelvis demonstrates a periappendiceal fluid collection. Culture of this fluid would most likely isolate which of the following organisms?

Question

A 28-year-old woman comes to the emergency department because of a 6-day history of abdominal pain, fever, vomiting, and decreased appetite. Her pain started as dull and diffuse but has progressed to a sharp pain on her right side. She did not seek medical attention earlier because she has no medical insurance and "was waiting for the pain to disappear." She has no history of serious illness. She is sexually active with one male partner and uses condoms consistently. Her temperature is 38.2°C (100.8°F), pulse is 88/min, respirations are 18/min, and blood pressure is 125/75 mm Hg.There is right lower quadrant tenderness with rebound as well as a palpable mass.  CT scan of the abdomen and pelvis demonstrates a periappendiceal fluid collection.  Culture of this fluid would most likely isolate which of the following organisms?

Quizplus · Accepted Answer

Eductional Objective: Intraabdominal infections are polymicrobial, with B. fragilis and E. coli being the most prominent organisms isolated.

A 28-Year-Old Woman Comes to the Emergency Department Because of a 6-Day