Which of the following conditions is NOT commonly treated with high-flow oxygen?

High-flow oxygen is typically indicated for various severe respiratory and circulatory conditions to improve oxygenation. In the context of the options presented, flu-like symptoms are generally not associated with severe hypoxia or an immediate need for high-flow oxygen therapy. Patients with flu-like symptoms usually present with mild to moderate respiratory issues that can often be managed with standard care and may not require supplemental oxygen, especially when their oxygen saturation levels are adequate.

In contrast, conditions such as severe asthma attacks, carbon monoxide poisoning, and acute chest pain often indicate significant respiratory distress or impairment in oxygen delivery and utilization, necessitating high-flow oxygen to prevent hypoxia and support the patient’s respiratory function. Therefore, flu-like symptoms stand out as the condition least likely to merit high-flow oxygen treatment in a typical clinical scenario.