Which gases are classified as non-flammable medical gases?

The identification of non-flammable medical gases is critical in ensuring safety and effective patient care in healthcare environments. The correct choice includes gases that are typically used in medical applications and do not pose a fire risk under normal circumstances.

In this case, the gases listed—oxygen, nitrous oxide, and medical air—are commonly utilized in medical settings. Oxygen, while it supports combustion, is not considered a flammable gas when contained properly in medical applications. Instead, it is essential for various medical treatments and procedures. Nitrous oxide is used as an anesthetic and is categorized as a non-flammable gas. Medical air, a mixture of nitrogen and oxygen, is also used for respiratory support and is non-flammable.

The other choices consist of gases that do not fit the criteria of being non-flammable within medical use. For example, carbon dioxide, helium, and argon are generally non-flammable, but they are not primarily used for therapeutic purposes like the gases in the correct choice. Meanwhile, propane, butane, and methane are flammable and therefore unsuitable as medical gases. Lastly, ethylene is not used for therapeutic purposes in typical medical applications and is classified differently due to its flammability.

Thus, the selection of oxygen, nit