Final answer:
The most prioritized measure in response to an increase in HAIs is frequent and thorough hand washing. It is the most effective defense against the spread of many pathogens, including those responsible for HAIs.
Step-by-step explanation:
In response to the trend of increasing hospital-acquired infections (HAIs), the prioritized measure should be frequent and thorough hand washing. Handwashing is considered the most effective defense against the spread of pathogens, which includes those that could potentially lead to HAIs. It is critical for healthcare workers to wash their hands thoroughly between every patient contact and after any interaction with bodily fluids or infectious materials. While the use of gloves, N95 masks, and prophylactic antibiotics can play roles in preventing infection, none are as fundamentally important as maintaining strict hand hygiene practices.
Incorrectly or infrequently washed hands can lead to the transmission of pathogens that may cause HAIs, making this measure fundamental in infection control. In contrast, the prophylactic use of broad-spectrum antibiotics is not recommended as a first response due to the risk of developing antibiotic-resistant bacteria and should be limited to specific situations such as surgical procedures where the risk of infection is high.