What method should be used to communicate with patients during the first action of sorting?

Using voice commands is the best method to communicate with patients during the first action of sorting. This approach is immediate and allows for direct interaction, ensuring clarity of instruction and the ability to assess the patient's understanding right away. By using voice commands, first responders can efficiently convey vital information in situations that often involve high stress and chaos.

The immediacy of verbal communication also means that responders can adjust their messages based on the patient’s responses, fostering a two-way dialogue that is essential for effective triage. Voice commands can be used to quickly direct patients to specific areas or actions, enhancing the overall organization and speed of response in emergency situations.

Other methods such as written notes, telephone calls, and visual signals may not provide the same level of urgency or clarity needed in these scenarios. Written notes would take time to compose and may not be read immediately; telephone calls could introduce delays and miscommunication; while visual signals might not be as quickly comprehensible to all patients, especially under stress or if they are not aware of what the signals mean. Thus, voice commands are the preferred choice for expedient and effective communication in the context of patient sorting.