2 EMS Communications

Radio procedures

Clear communication helps dispatch coordinate resources, supports clinical decisions, and preserves continuity of care. Follow agency procedures, medical direction, and local radio protocols; frequencies, call signs, and report formats vary by system.

Preparing and transmitting

Before transmitting, confirm that you are on the correct channel, listen for existing traffic, and organize your message. Identify your unit and the station or person you are calling. Press the push-to-talk button, pause briefly, and then speak clearly at a steady pace. Keep transmissions brief and give numbers distinctly when they could be misunderstood.

Release the button and listen for a reply. Acknowledge and repeat critical information, such as an address, assignment, or medical order, to confirm it was received correctly. Do not assume a message was understood simply because it was sent.

Use Plain language and common terminology, especially when multiple agencies are working together. Avoid unnecessary codes, jargon, speculation, and patient-identifying details on channels that may be monitored. Transmit only information needed for the operational or clinical purpose, using approved channels and agency policy.

If a transmission is blocked or unclear, try again, switch to an authorized backup method, or ask dispatch for assistance.

Coordinating with dispatch

Dispatch communication tracks unit status and helps match resources to changing conditions. A typical exchange includes the unit's identification, acknowledgment of the call, and concise status updates at milestones required by local procedure. Examples include responding, on scene, transporting, and available after transfer.

Report the location clearly and correct errors promptly. Request additional resources early when needed, such as another ambulance, fire, law enforcement, or a specialized response. Relay hazards, access problems, scene changes, delays, and changes in patient condition that affect operations. Keep dispatch updated if the destination or transport plan changes.

For an urgent safety threat or emergency, use the system's designated emergency-traffic procedure, state the nature and location of the problem, and follow dispatcher instructions. During a multiagency incident, use assigned channels and established command procedures to keep operational traffic coordinated.

Patient reports and handoffs

A Prearrival report gives the receiving facility time to prepare. Follow the local format; a practical sequence is:

1. Identify the unit and give the estimated time of arrival.

2. Give the patient's approximate age and sex, when relevant.

3. State the chief complaint and important circumstances or onset.

4. Describe mental status and significant assessment findings.

5. Report relevant vital signs and trends.

6. Describe care provided and the patient's response.

7. Identify special needs or immediate concerns.

For example: “Central Hospital, Medic 4, two minutes out with a 68-year-old woman reporting chest pressure that began 20 minutes ago. Alert, skin cool; blood pressure 94 over 60, pulse 112. We placed her on the monitor and are following protocol. Pressure persists; no change in mental status.” This report gives actionable findings without presenting an unsupported diagnosis. Update the facility if the patient's condition changes.

Bedside transfer

At the bedside, give a direct Handoff to the clinician accepting care. State the main concern first, summarize relevant events and findings, and then describe treatments and response. Identify changes or unresolved concerns, and confirm that responsibility for care has transferred.

A concise verbal report complements the written patient care record; it does not replace it.

Documenting patient care

Complete the Patient care report (PCR) according to agency and state requirements. Record the response and patient-care timeline, relevant history, assessment findings, vital signs, decisions, procedures, medications, patient response, disposition, and transfer of care. When relevant, document dispatch or medical-control communications, including significant instructions, clarifications, and actions taken.

Use objective language. Distinguish what you observed from what the patient or a bystander reported, and use direct quotations when the patient's exact words matter. Avoid unsupported conclusions and personal judgments.

Make the report clear, accurate, and complete. Identify missing or unobtainable information rather than guessing. Correct errors using the approved amendment process so both the original entry and the correction remain traceable.

NEMSIS provides a national data standard for consistent collection and exchange of EMS patient-care information. Specific documentation rules and retention requirements depend on applicable state and agency policy.

Overcoming communication barriers

Noise, poor reception, equipment failure, stress, time pressure, unfamiliar terminology, and interruptions can distort messages. Reduce background noise where practical, use short statements, ask one question at a time, and use Read-back or repeat-back to confirm critical details. If a radio fails, use the agency's backup plan.

Patients may have limited English proficiency, hearing or speech differences, cognitive impairment, altered mental status, or distress that makes communication difficult. Face the patient, use plain and respectful language, and allow time to respond. Use qualified interpretation or communication aids when available and appropriate.

Seek information from a caregiver or bystander when needed, while distinguishing their account from the patient's. During interagency incidents, avoid agency-specific shorthand and confirm assignments and locations using common terminology.