During a concrete pour on a large commercial site, a co-worker working near your excavator collapses and appears unconscious. What is your primary immediate responsibility?

Question: During a concrete pour on a large commercial site, a co-worker working near your excavator collapses and appears unconscious. What is your primary immediate responsibility?

Answer options:

• Administer first aid if you are trained and the area is safe.
• Move your machine to a safe location away from the incident. ✅ Immediately call 911 (or your local emergency number) to report the medical emergency.
• Yell for other workers to come assist the fallen colleague.

Correct answer: Immediately call 911 (or your local emergency number) to report the medical emergency.

Explanation: In any medical emergency, the primary and immediate responsibility is to call for professional medical help (e.g., 911) as quickly as possible. While moving your machine to a safe location is important, and administering first aid is crucial if trained and safe, initiating the emergency medical response takes precedence to ensure timely professional care.