6. Who should be called for a large, uncontained operating r...

Answer

Based on standard hospital emergency response protocols, in the event of a large or uncontained chemical spill or hazardous material incident (such as an uncontained operating room hazard), the internal emergency number should be dialed immediately to alert the hospital operator or facility response team (e.g., dialing an internal emergency extension like 4444). Therefore, option c is the correct choice.