What does PISS stand for?

The correct answer is Pin Index Safety System. This system is specifically designed for regulating the connection of medical gas cylinders to medical equipment. The PISS uses a set of pins and sockets that are uniquely configured for different types of gases, preventing the accidental interchange of incompatible gases. This ensures that, for instance, oxygen cannot be connected to a line designated for other gases such as nitrous oxide or carbon dioxide. The significance of the PISS in maintaining patient safety can't be overstated, as it plays a crucial role in medical environments where precision in gas delivery is vital.

Understanding the function and the mechanism of the Pin Index Safety System is essential for anyone working with medical gases, as it is a fundamental component in ensuring that the correct gas is delivered to patients without any risk of mix-ups.