Which of the following is an indication that a person may need emergency oxygen?

Difficulty in breathing is a clear indication that a person may require emergency oxygen. This symptom suggests that the individual is not getting enough oxygen, which can lead to serious medical complications if not addressed promptly. Breathing difficulties can stem from various conditions, such as asthma attacks, allergic reactions, or respiratory infections, and can result in inadequate oxygenation of the body's organs and tissues, leading to critical health issues.

It's important to recognize that feeling lightheaded without other symptoms may not be sufficient to warrant emergency oxygen, as it could be related to various non-critical situations. Low energy levels after physical activity, while potentially a sign of fatigue or overexertion, do not inherently indicate the need for oxygen. Minor cuts and scrapes also do not justify oxygen use, as they do not affect breathing or oxygen saturation levels. Therefore, recognizing difficulty in breathing is vital in identifying the need for immediate medical intervention and oxygen supply.