What is the purpose of administering supplemental oxygen to a patient with chest pain or dyspnea?

• A. To relieve chest pain.
• B. To hydrate.
• C. To correct hypoxia and maintain adequate oxygenation per protocol.
• D. To cure underlying heart disease.

Answer: (C)

The purpose of supplemental oxygen in chest pain or dyspnea is to correct hypoxia and maintain adequate oxygenation per protocol. When oxygen levels in the blood are low, giving extra oxygen raises the amount available for tissue delivery, improving arterial oxygen saturation and helping tissues function while you assess and address the underlying cause (such as heart ischemia or respiratory distress). It’s a supportive measure, not a direct remedy for pain, hydration, or curing heart disease. Oxygen helps relieve problems caused by low oxygen, but the heart condition itself still needs treatment. Protocols guide when to give oxygen and what oxygen saturation targets to aim for (often around 94–99% for most adults, with adjustments for conditions like COPD).