What is described as the main advantage of the Venturi mask?

• A. The ability to adjust the percentage of inspired oxygen for critically ill patients.
• B. It does not contain an oxygen reservoir, so the same percentage of oxygen can consistently be administered.
• C. The ability to adjust the amount of oxygen by increasing the flow rate on the regulator.
• D. The use of its fine adjustment capabilities in the long-term management of physiologically stable patients.

Answer: (D)

The key idea is that the Venturi mask provides precise, stable oxygen concentrations, which is especially valuable for patients whose oxygen needs are relatively predictable over time. It uses color-coded adapters to set a specific FiO2, and the design ensures that the delivered percentage remains consistent even as the patient’s breathing varies. This makes it ideal for long-term management of physiologically stable patients who require careful, gradual adjustments in oxygen delivery without swings in concentration. While you can change the oxygen level by swapping adapters, and the mask doesn’t have a reservoir, the strongest advantage is the ability to fine-tune and maintain a precise oxygen concentration over time.