In which situation would you use a high-flow nasal cannula?

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Using a high-flow nasal cannula is particularly beneficial in situations where a patient requires supplemental oxygen but is not in respiratory failure. This method allows for the delivery of higher concentrations of oxygen than a standard nasal cannula while still being comfortable for the patient. The high-flow system can deliver oxygen at rates of up to 60 liters per minute, providing not only oxygen but also positive end-expiratory pressure, which can help keep the alveoli open and improve gas exchange.

In cases where a patient isn't in respiratory failure, high-flow nasal cannula therapy can effectively manage oxygen needs, particularly in patients who may have increased work of breathing or hypoxemia without the need for more invasive interventions like intubation.

While respiratory failure, conditions like COPD, or symptoms such as chest pain may affect oxygenation status, the high-flow nasal cannula is not exclusively limited to these states. Its primary role is to enhance oxygen delivery when patients have respiratory function but may benefit from increased oxygen flow.

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