What are the common methods of oxygen delivery?

The answer is accurate because nasal cannula, simple face mask, non-rebreather mask, and bag-valve mask are all standard devices used for delivering supplemental oxygen in various clinical situations.

A nasal cannula is often used for patients who require low to moderate oxygen flow, providing a comfortable means to administer oxygen while allowing patients to eat or talk. The simple face mask covers the nose and mouth, offering a straightforward method to provide moderate levels of oxygen, especially when higher concentrations are not necessary or required for short-term use.

The non-rebreather mask is designed to deliver high concentrations of oxygen, often utilized in emergencies where patients exhibit signs of severe hypoxia. This mask includes a one-way valve that prevents exhaled carbon dioxide from entering the oxygen reservoir bag, ensuring that the patient receives fresh oxygen.

The bag-valve mask (BVM) is a crucial device in emergency situations for providing positive pressure ventilation to patients who are unable to breathe adequately. It allows for the delivery of oxygen-enriched air to the lungs, which is vital during cardiac arrest or respiratory failure.

Collectively, these devices represent the common methods of oxygen delivery in prehospital and hospital settings, allowing for a range of oxygenation needs tailored to the patient's condition.