What is a recommended action if a diver becomes disoriented during a night dive?

When a diver becomes disoriented during a night dive, signaling their buddy and staying calm is a crucial action to take. Maintaining composure is essential in preventing panic, which can lead to poor decision-making and potentially dangerous situations. By communicating with their dive buddy, the diver can receive reassurance and assistance.

In addition, by staying together, both divers can use their lights as navigational tools and help establish a sense of direction. This collaborative approach is vital in low visibility conditions, where relying on one's own perception can be challenging. Signaling provides not only immediate assistance but also reinforces the buddy system, which is fundamental in diving for safety and support.

The other actions listed do not promote safety effectively. Panic can lead to erratic behavior, and ascending without proper safety measures can result in decompression sickness. Continuing to dive without reorienting can further increase disorientation and potential hazards. Turning off the light eliminates a crucial source of visibility, isolating the diver and making it harder for their buddy to assist.