A patient receiving 35% O2 through an air-entrainment mask at 6 L/min develops tachypnea and SpO2 drops. What is the best immediate action?

In this scenario, the patient is receiving 35% oxygen through an air-entrainment mask and is experiencing tachypnea along with a drop in oxygen saturation (SpO2). The best immediate action is to increase the device's input flow to 10 L/min.

By increasing the input flow, you enhance the overall delivery of oxygen through the mask, ensuring that the patient receives a higher total flow of mixed gases. Air-entrainment masks work by allowing room air to mix with a specified amount of oxygen; however, if the flow rate is too low, the patient may not receive the adequate concentration of oxygen they require, especially if there is a significant increase in their respiratory rate (as indicated by tachypnea) or if their oxygen saturation decreases.

The rationale behind this action is to maintain an appropriate total flow to match the patient's respiratory needs and prevent further desaturation. Increasing the flow helps to boost the total oxygen delivery while minimizing the risk of diluting the oxygen concentration that the patient receives.

Increasing the output flow to 8 L/min might also seem beneficial, but depending on the specific air entrainment device and the patient's needs, it may not be sufficient to address the current situation adequately. Simply continuing monitoring would not address the