Which of the following poses a risk when using compressed gases?

Using compressed gases carries several inherent risks, and uncontrolled flow is a significant concern. When compressed gases are released without regulation, they can create high-pressure situations that could lead to sudden bursts or releases of gas. This uncontrolled flow can cause physical injuries—such as blasts of gas that can result in tissue damage or even asphyxiation—if the gas displaces oxygen in the environment. Additionally, uncontrolled flow may result in equipment damage or failure, which poses further risks both to operators and the surrounding area.

In a clinical or industrial setting, managing gas flow with appropriate safety mechanisms—such as regulators and flow meters—is crucial to prevent these dangers. Understanding the potential dangers of uncontrolled gas flow ensures that proper protocols and safety measures are implemented to minimize risks associated with handling medical gases.

The other options, although they play roles in safety, do not directly address the immediate risk presented by uncontrolled gas flow, which can be critical in ensuring both the safety of individuals working with or around compressed gases and the proper functioning of medical equipment.