Klebsiella Spp

question 13

Multiple Choice

Klebsiella spp.were isolated from a sputum sample,and susceptibility testing was performed.The isolates were sensitive to several antibiotics;however,they were resistant to ampicillin.Which one of the following statements explains this discrepancy?

• A)The ampicillin disk is most likely expired.
• B)Because Klebsiella spp.should be sensitive to ampicillin,a technical error is to blame.
• C)Ampicillin inhibits cell wall synthesis.In addition,because Klebsiella spp.do not have a cell wall,they should not have been tested for ampicillin.
• D)No discrepancy is present;Klebsiella spp.are normally resistant to ampicillin.

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