What is one of the primary functions of CRNAs in surgical settings?

B is the correct answer because one of the key responsibilities of Certified Registered Nurse Anesthetists (CRNAs) is to monitor patients' vital signs during surgical procedures. This essential function involves continuously assessing parameters such as heart rate, blood pressure, oxygen saturation, and respiratory rate to ensure patient safety while under anesthesia. By closely observing these vital signs, CRNAs can identify any adverse reactions or complications early and intervene as necessary, which is critical in maintaining the overall safety and effectiveness of anesthesia care during surgery.

The other options do not accurately represent the primary functions of CRNAs in surgical settings. Administering only local anesthetics does not encompass the full scope of CRNAs' expertise, as they are trained to provide various types of anesthesia, including general and regional anesthesia. Performing surgical procedures is outside the typical scope of CRNA practice, as they are specialized in anesthesia care rather than surgery itself. Lastly, creating anesthesia protocols without collaboration is not aligned with best practices in the surgical setting, where teamwork and communication with the surgical team are vital for patient safety and effective care.