What is the common emergency procedure for a gas loss scenario?

In a gas loss scenario, the appropriate response is to signal to a buddy, maintain a calm ascent, and switch to an alternative air source if available. This procedure is critical because it ensures that the diver communicates the issue effectively, which is vital in a high-stress situation. Maintaining a calm ascent helps to prevent complications such as decompression sickness or barotrauma, which can occur if a diver ascends too quickly.

Using an alternative air source, like a buddy's spare regulator or an auxiliary tank, provides a means to continue breathing while addressing the emergency. This multi-faceted approach prioritizes safety by fostering teamwork and effective resource management underwater. In contrast, responses that involve panic, rapid ascent without caution, or remaining in place without seeking assistance can lead to dangerous situations, including serious injury or drowning. Hence, the highlighted procedure aligns with safe diving practices and emergency protocols, emphasizing preparedness and mutual support among divers.