In case of cabin depressurization, what should a flight attendant do?

In the event of cabin depressurization, the primary responsibility of a flight attendant includes ensuring their own safety in order to effectively assist passengers. Promptly donning the oxygen mask is crucial because it provides immediate access to breathable oxygen, which is vital for maintaining consciousness and functioning properly in a low-pressure environment.

When cabin pressure drops, the amount of oxygen in the air decreases, making it difficult to breathe. By putting on their oxygen mask, flight attendants can secure their own well-being and are then more capable of helping passengers who may also be experiencing difficulty. This response is not only a matter of self-protection but also critical for the flight attendant's ability to manage the situation and ensure the safety of all on board.

The other options do not effectively prioritize the flight attendant's immediate need for oxygen, which is essential in a depressurization scenario. For instance, leaving the cabin would expose them to even greater danger, while notifying passengers to remain seated or turning off the in-flight entertainment may be part of the subsequent safety procedures, but they do not directly address the immediate need for oxygen that must be prioritized.