If you notice a discrepancy between the GPS route and road signs, what should you do?

• A. Follow GPS despite signs.
• B. Cross-check with dispatch and signs; adjust as directed.
• C. Wait for a supervisor.
• D. Stop and rest.

Answer: (B)

When a route shown by GPS conflicts with what you see on road signs, you must verify routing with the person in charge and follow what they direct. In EMS, dispatch has the authority to authorize the safest and most efficient path for a given patient, and road signs reflect real-time traffic rules and conditions. Cross-checking with dispatch and signs ensures you’re using a route that’s both approved and legally compliant, and you can adjust as directed to reach the destination safely and promptly.

GPS can be out of date or miss a closed road or detour, while signs show the current on-ground instructions. If dispatch confirms a different route or gives a new instruction, follow that direction. This approach minimizes delays while maintaining safety and proper procedure.

Other options fall short because ignoring signs in favor of GPS can lead you into restricted turns or hazards, waiting for a supervisor introduces unnecessary delay in patient care, and simply stopping to rest doesn’t resolve the navigation conflict or prioritize the patient.