[Can we not do without oxygen administration through a nasal cannula?].

Nasal cannulae for oxygen administration are applied abundantly in clinical medicine, even though their use may cause patient discomfort. Although nasal cannulae may be effective in increasing oxygen uptake to some degree, they are unlikely to prevent severe hypoxaemia. Furthermore, they are often used when arterial oxygen saturation is already ≥ 90%, in which case additional oxygenation is usually not required, nor does it relieve the sensation of dyspnoea.