A nurse is providing care to a client who has a skin infection. The client questions the necessity of testing, "Why do you need to take a culture? It's clearly infected. Just give me some amoxicillin and let me go home." Which of the following responses by the nurse is most appropriate?
"The over-prescription of medications like amoxicillin is the reason why there are so many medication-resistant bacteria now. With a skin infection like this, methicillin-resistant Staphylococcus aureus is possible."
"Amoxicillin is usually not the right kind of antibiotic for a skin infection. You are going to need something stronger that can reduce the risk of methicillin-resistant Staphylococcus aureus."
"If we do not take a culture and it turns out to be a more serious infection than you think, complications could occur. We need to test to avoid any risk of malpractice."
"The culture is needed to determine whether the infection is bacterial. If it is bacterial, knowing the kind of bacteria helps the physician determine which antibiotic you need."