Question

A 4-year-old child is transported to the ED by EMS. The child is receiving supplemental oxygen by a simple mask at 8L/min. Which of the following best describes the FIO2 range this device is delivering?

a) 40-50%
b) 50-60%
c) 60-70%
d) 70-80%

Answer 1

The FiO2 range for a simple oxygen mask at 8L/min is most accurately described as 50-60%, which represents the proper oxygen concentration being delivered to the child.

Step-by-step explanation:

The fraction of inspired oxygen (FiO2) delivered by a simple mask at a flow rate of 8 liters per minute (L/min) typically ranges from 40-60%. Options b) 50-60% would be the most accurate representation for the FiO2 range, given that simple masks can deliver slightly higher concentrations with higher flow rates, but rarely achieve concentrations above 60%. It is important to note that FiO2 delivery can vary based on the mask fit, the patient's breathing pattern, and other factors.