Final answer:
Exposure to bloodborne pathogens is the nursing hazard of most concern in an ambulatory surgical center due to the risk of contracting diseases from needle sticks, contaminated medical equipment, and nosocomial infections.
Step-by-step explanation:
The nursing hazard of most concern in an ambulatory surgical center is exposure to bloodborne pathogens. This hazard is particularly significant due to the frequent contact healthcare workers have with sharp instruments, bodily fluids, and the potential for needlestick injuries. For instance, phlebotomists and dentists have a higher risk of needle sticks, and therefore an increased risk of contracting diseases. Nosocomial infections, such as those acquired from catheter-related bloodstream infections, can occur when medical devices or the hospital environment are contaminated. Precautions such as proper sterilization and hygiene practices are essential to prevent these types of infections in medical settings. Furthermore, the presence of patients with weakened immune systems in hospitals can contribute to the severity of infections. Preventing exposure to bloodstream pathogens via contaminated medical equipment or practices is a critical safety focus.