When should high-flow oxygen be administered?

High-flow oxygen should be administered to patients with suspected hypoxemia or respiratory distress because these conditions indicate that a patient may not be receiving adequate oxygenation. Hypoxemia refers to low levels of oxygen in the blood, which can lead to serious complications if not treated promptly. Patients in respiratory distress may also struggle to breathe effectively, further exacerbating the risk of low oxygen levels. Providing high-flow oxygen can help restore adequate oxygen saturation levels and improve overall respiratory function, facilitating better outcomes.

The other choices do not meet the criteria for when high-flow oxygen is appropriately indicated. Administering high-flow oxygen solely to unconscious patients neglects the broader scope of individuals who may need intervention, such as those conscious but experiencing hypoxemia. Administering oxygen to patients with normal oxygen saturation levels is unnecessary and could even lead to complications such as oxygen toxicity in certain situations. Providing high-flow oxygen just for patients with chest pain does not take into account the need for clinical assessment of oxygen levels or respiratory distress, as chest pain can arise from various underlying conditions that may not require supplemental oxygen.