The correct actions in response to hypoxia-like symptoms occurring airborne are:

When dealing with hypoxia-like symptoms while airborne, it is critical to take immediate and comprehensive actions to ensure safety and mitigate the potential dangers posed by decreased oxygen levels.

Putting on an oxygen mask as soon as possible is a vital first step. This action directly addresses the problem by providing supplemental oxygen, which can help alleviate the symptoms and improve the individual's condition. Oxygen deprivation can lead to serious consequences if not promptly addressed, making this step essential.

Breathing at a normal rate and depth is also important. Over-breathing or hyperventilating can lead to additional complications, such as decreased carbon dioxide levels, which might cause a range of symptoms, including dizziness and tingling sensations. By maintaining a steady breathing pattern, you can help regulate your body's response to the situation.

Communicating your symptoms to someone else in the aircraft is equally important. This ensures that others are aware of your condition and can offer assistance if necessary. In a multi-crew environment, sharing this information allows for coordinated actions to manage the situation effectively.

By recognizing that all these actions are crucial components in responding to hypoxia-like symptoms, the conclusion that they should be performed together reinforces the best practices for ensuring safety and health in flight environments. This comprehensive approach encapsulates the