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## Oxygen Analyzer Malfunctions ### Scenario 1: Non-Rebreather Mask You are treating a patient with a non-rebreather mask at 12 L/min flow. You notice the bag completely collapses during inspiration. What would you do? - **Increase the flow to 15 L/min.** ### Scenario 2: Low SpO2 You are tre...

## Oxygen Analyzer Malfunctions ### Scenario 1: Non-Rebreather Mask You are treating a patient with a non-rebreather mask at 12 L/min flow. You notice the bag completely collapses during inspiration. What would you do? - **Increase the flow to 15 L/min.** ### Scenario 2: Low SpO2 You are treating a patient with a 6 L nasal cannula with a bubble humidifier. The patient is stable with a SpO2 of 93%. The nurse increased the flow to 8 L/min due to a desaturation event down to 88%, but the SpO2 remains at 88%. - **The most likely reason for the low SpO2 is: the patient is most likely having an exacerbation of COPD.** The patient should be placed on CPAP. ### Scenario 3: Aerosol Mask An MD orders 50% O2 through an aerosol mask. The patient's tidal volume is 500 ml and their respiratory rate is 25 breaths per minute. The input flow is 10 L/min. Will the patient receive their inspiratory demand? - **No, the patient needs something over 30 L/min. The best thing to do is increase the FiO2 to 60%.** ### Scenario 4: Oxygen Analyzer Malfunction Your oxygen analyzer is malfunctioning. What is the most likely cause? - **The membrane is torn.** ### Scenario 5: Oxygen Blender You are using an oxygen blender to provide an exact FiO2 to an infant's NeoPuff unit. You dial in an FiO2 of 40%, but the oxygen analyzer indicates 25%. What would you do to correct this situation? - **Calibrate the oxygen analyzer.**