CASE HISTORY a Four-Year-Old Boy,Evan,was Admitted to the Hospital to Evaluate and Evaluate

question 9

Multiple Choice

CASE HISTORY
A four-year-old boy,Evan,was admitted to the hospital to evaluate and treat persistent pain in the rectal area.His problem began about one week earlier with ill-defined pain in the same region.He had a white blood cell count of 24,900 with 87% granulocytes (neutrophils) .An abdominal computed tomography scan revealed an abscess (walled-off region of infectious bacteria) next to his rectum.A needle aspiration of the abscess drained 20 milliliters of yellowish,foul-smelling fluid.The specimen was plated on blood agar under aerobic conditions,but the culture was negative despite evidence of bacteria in the abscess drainage.(Blood agar is a rich medium containing 5% sheep red blood cells. )
Which statement regarding specimen collection is FALSE?

• A) Specimen collection procedures are generally divided into those for sterile and nonsterile body sites.
• B) Internal abscesses should be collected under conditions that allow the survival of anaerobic pathogens.
• C) Samples from both sterile and nonsterile body sites should be plated on selective media.
• D) Sterile body site samples are easily contaminated by normal flora in the collection process.

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