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A specimen collected via tympanocentesis is received in a capped syringe on evening shift at 4:00 pm

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A specimen collected via tympanocentesis is received in a capped syringe on evening shift at 4:00 pm

A specimen collected via tympanocentesis is received in a capped syringe on evening shift at 4:00 pm. The specimen was placed in the refrigerator until processed at 10:00 pm. The direct Gram stain is provided.

Source: CDC/Dr. Mike Miller
At 24 and 48 hours, the sheep blood, chocolate, and MacConkey agars are all negative for growth. Which of the following best explains the discrepant results?
a.   The organism is fastidious.
b.   The patient is taking antibiotics.
c.   The organism autolyzed.
d.   The organism is an anaerobe.

Textbook

Clinical Laboratory Microbiology: A Practical Approach

Edition: 1^st

Authors: Kiser, Payne, Taff

Read 229 times

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lubadub Author

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8 years ago

Lovely, thanks for answering

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rawemotions

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8 years ago

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