Final answer:
It is essential to identify the causative agent and perform antibiotic sensitivity testing to treat infections effectively. Initial empirical treatment may include antibiotics effective against MRSA, but treatment may be adjusted based on the sensitivity results to combat antibiotic resistance.
Step-by-step explanation:
When determining the sequence of treating infections such as UTI and sepsis, it is critical to identify the causative agent and its antibiotic sensitivity. Often, antibiotic sensitivity testing is used to identify the most suitable treatment options. For staphylococcal infections, such as caused by Methicillin-resistant Staphylococcus aureus (MRSA), empiric therapy may start with antibiotics known to be effective against MRSA due to the bacteria's resistance to many common antibiotics. However, results from sensitivity analysis can necessitate a change in the antibiotic regimen. This approach helps to combat the infection more effectively and mitigate the risks associated with antibiotic resistance. Medical professionals are particularly concerned about MRSA because of its ability to transfer methicillin-resistance to other bacteria and potentially accumulate additional antibiotic resistance genes, becoming a superbug.