Q1 · Oxygen Delivery Devices
NEET PGMediumWhich device delivers a precise, controlled fraction of inspired oxygen (FiO2), useful in patients at risk of CO2 retention?
Explanation
A Venturi mask delivers a fixed, precise FiO2, such as 24% or 28%, regardless of the patient's breathing pattern, making it useful when controlled oxygen is needed, as in COPD patients at risk of CO2 retention.