What should you do to respond calmly when an alarm sounds in the laboratory?

When an alarm sounds in the laboratory, the best response is to remain quiet. This allows you to listen closely for further instructions, which may come from supervisors or emergency personnel. Maintaining composure is critical during an emergency, as it helps ensure that everyone can hear important announcements and that chaos is minimized. A calm environment helps facilitate an orderly response to any situation, making it easier to follow emergency protocols effectively.

In contrast, other options could lead to confusion or increase risk. For instance, gathering belongings or running to the exit can be distracting and may cause delays in evacuating or following instructions. Continuing to work is unsafe as it signifies a disregard for potential hazards, which could be serious depending on the nature of the alarm.