Final answer:
The decision to not continue using broad-spectrum antibiotics, even though narrow-spectrum antibiotics can specifically kill the pathogen, is based on several factors including the risk of superinfection and antibiotic resistance. Careful evaluation is needed to decide on the appropriate antibiotic treatment.
Step-by-step explanation:
The decision to not continue using broad-spectrum antibiotics, even though narrow-spectrum antibiotics can specifically kill the pathogen, is based on several factors. One reason is that broad-spectrum antibiotics can also target a broad range of normal microbiota, which can increase the risk of a superinfection. A superinfection occurs when an antibacterial kills the protective microbiota, allowing another pathogen to proliferate and cause a secondary infection. Another consideration is the risk of promoting antibiotic resistance. By using a narrow-spectrum drug first, the risk of promoting antibiotic resistance is minimized. Overall, it is important to carefully evaluate the type of infection, the causative agent, and the potential risks and benefits before deciding on the appropriate antibiotic treatment.