What is the most important warning to heed while diving with a dive computer?

When using a dive computer, the most important warning to heed is that all these factors—oxygen/nitrogen exposure, ascent rates, and decompression limits—are crucial for safe diving practices. A dive computer is designed to monitor various parameters during a dive, particularly related to gas exposure and ascent safety.

Oxygen/nitrogen exposure refers to managing the levels of these gases as they can become toxic at higher concentrations or levels, particularly with enriched air nitrox, which has higher oxygen content. The dive computer helps you track the partial pressures of these gases and manage your dive profiles accordingly.

Ascent rates are critical for preventing decompression sickness. A dive computer will typically provide guidance on how quickly you should ascend to avoid the risk of bubbles forming in your bloodstream due to rapid decompression. Following the recommended ascent rates is essential to ensure that you give your body adequate time to off-gas nitrogen safely.

Decompression limits indicate the maximum depth and time you can stay underwater without requiring staged decompression stops on your ascent. Exceeding these limits can lead to serious injury or death due to decompression sickness.

In summary, since each factor plays a significant role in your safety and overall diving experience, it is indeed accurate to say that all answers are