What diving principle should be followed when ascending after losing a buddy?

The principle that should be followed when ascending after losing a buddy is that the ascent should be controlled to avoid injury. Controlled ascents are crucial for preventing decompression sickness and barotrauma, both of which can result from rapid changes in pressure. During a controlled ascent, a diver can monitor their ascent rate, utilize safety stops, and ensure they are adequately equalizing their ears.

In the situation of losing a buddy, maintaining a controlled ascent allows the diver to assess their condition, monitor for potential issues that may arise due to stress or disorientation after the separation, and plan their actions appropriately. It emphasizes safety over speed, ensuring the diver reaches the surface in a manner that minimizes the risk of injury.

Rapid ascents or minimizing ascent time could lead to serious health issues, while searching during ascent could compromise safety. It’s essential to prioritize a thoughtful and measured approach in such scenarios, focusing on the diver’s well-being while ensuring that they adhere to safe diving practices.