Which device is used for minimal oxygen delivery for patients with SpO2 below 95%?

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Multiple Choice

Which device is used for minimal oxygen delivery for patients with SpO2 below 95%?

In oxygen delivery, you choose the device based on how much support the patient needs. For mild hypoxemia, you start with the lowest level of oxygen delivery. A nasal cannula provides the smallest increase in oxygen, delivering roughly 1–6 liters per minute and resulting in an FiO2 of about 24–44%. It’s comfortable, allows talking, and is well suited for patients who only need a modest rise in oxygen. If more oxygen is needed, you move to higher-delivery options. A non-rebreather mask can deliver a much higher FiO2 (up to near 100% with a good seal and proper reservoir). BiPAP offers ventilatory support with positive pressure and higher oxygen but is used when the patient needs assistance with breathing mechanics rather than just supplemental oxygen. An endotracheal tube is an invasive airway with mechanical ventilation, reserved for more severe cases or when the airway cannot be protected. So for minimal oxygen delivery, the nasal cannula is the best choice.

In oxygen delivery, you choose the device based on how much support the patient needs. For mild hypoxemia, you start with the lowest level of oxygen delivery. A nasal cannula provides the smallest increase in oxygen, delivering roughly 1–6 liters per minute and resulting in an FiO2 of about 24–44%. It’s comfortable, allows talking, and is well suited for patients who only need a modest rise in oxygen.

If more oxygen is needed, you move to higher-delivery options. A non-rebreather mask can deliver a much higher FiO2 (up to near 100% with a good seal and proper reservoir). BiPAP offers ventilatory support with positive pressure and higher oxygen but is used when the patient needs assistance with breathing mechanics rather than just supplemental oxygen. An endotracheal tube is an invasive airway with mechanical ventilation, reserved for more severe cases or when the airway cannot be protected.

So for minimal oxygen delivery, the nasal cannula is the best choice.

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