Table 151 Shows the ID₅₀ for Staphylococcus Aureus in Wounds with Bacterium

question 27

Multiple Choice

$\begin{array} { l | l | l } \text { Bacterium } & \text { Portal of Entry } & \text { ID50 } \\\hline \text { Stephylococcus aureus } & \text { Wound } & < 10 \\\hline \text { Stephylococcus aureus } & \text { Wound + Ampicillin } & 300\end{array}$ Table 15.1 shows the ID₅₀ for Staphylococcus aureus in wounds with and without the administration of ampicillin before surgery. Based on the data, the administration of ampicillin before surgery

• A) increases the risk of staphylococcal infection.
• B) decreases the risk of staphylococcal infection.
• C) replaces tetracycline.
• D) has no effect on risk of infection.
• E) The answer cannot be determined based on the information provided.

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