Which of the following gas cylinders is indicated by the blue color code?

The blue color code for gas cylinders is designated for nitrous oxide. This standardization in color-coding helps ensure safety and prevent confusion in emergency situations or when handling medical gases. Each gas has an assigned color that allows healthcare providers to quickly identify the type of gas contained within a cylinder.

For instance, in the color-coding system, oxygen cylinders are typically green, while nitrogen cylinders are labeled black. Helium is usually represented by a brown color. This system is crucial since incorrect identification could lead to errors in administration, particularly in a medical setting where gases have very different applications and effects on the patient. Understanding these color codes is fundamental for anyone working in respiratory care to ensure safe and effective practices.