The nurse is serving as a preceptor for a graduate nurse on a medical-surgical unit. The nurse, who is discussing the mechanisms of action of antibiotics, currently is talking about the mechanism of action of penicillins (PCNs)
Which statement by the graduate nurse best demonstrates understanding? "Penicillin works by a. weakening the bacterial cell wall, which then ruptures and dies."
b. inhibiting protein synthesis and suppressing bacterial growth."
c. disrupting bacterial protein synthesis, destroying the bacterial wall."
d. disrupting biochemical reactions, which results in cellular lysis."
A
PCNs weaken the cell wall, causing bacteria to take up excessive amounts of water and, subse-quently, rupture.
PCNs do not inhibit protein synthesis, disrupt bacterial protein synthesis, or disrupt biochemical reactions.
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