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Chapter 77. Intra-Abdominal Infections

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Which of the following would be considered a primary intra-abdominal infection?

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A. A patient with small bowel obstruction and peritonitis after receiving chemotherapy

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B. A patient who was knifed in the abdomen with rupture of the intestine

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C. Peritonitis in a patient undergoing peritoneal dialysis

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D. A patient who presents with a perforated GI ulcer

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With the phenomenon of third spacing in initial intra-abdominal infections, effective circulating blood volume increases in response to a decrease in cardiac output.

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In primary peritonitis, bacteria enter the abdomen via the bloodstream, lymphatic system by which of the following mechanisms?

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A. Via a peritoneal dialysis catheter

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B. Via perforation of the GI tracts

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C. Via fallopian tube transfer

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D. All of the above

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In patients with secondary peritonitis, bacteria may enter the abdomen via which of the following:

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A. Through a hemodialysis catheter

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B. Through the damage done to the GI tract by blunt trauma

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C. Through the bloodstream when there is damage to the GI tract

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D. Through a peritoneal dialysis catheter

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Community-acquired complicated intra-abdominal infections can be treated with the following agent(s) for a high-severity infection:

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A. Ampicillin-sulbactam

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B. Ticarcillin-clavulanate

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C. Amoxicillin-clavulanate

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D. Piperacillin-tazobactam

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A patient has been undergoing continuous ambulatory peritoneal dialysis (CAPD) and presents with cloudy dialysate, an intermittent, mild fever, and an elevated WBC. The most important factor(s) to consider when selecting an initial antimicrobial agent is (are):

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A. The dialysis centers and the patient’s history of infecting organisms and their sensitivities

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B. How long the patient has undergone CAPD and the time interval since their last infection

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C. The extent of the patient’s residual renal function

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D. The modality of dialysis (CAPD or APD)

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A 46-year-old immunocompromised man is diagnosed with a perforated peptic ulcer. What is the first-line treatment for this patient?

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