NAUI Open Water Scuba Diving 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

What is essential for post-dive safety regarding ascent and surface intervals?

Avoid diving in the same location repeatedly

Plan for adequate safety stops

Planning for adequate safety stops is a critical factor in ensuring post-dive safety because it helps to prevent decompression sickness, which can occur when a diver ascends too quickly from depth. During ascent, as the pressure decreases, dissolved gases in the body's tissues expand. Safety stops provide time for these gases to safely off-gas, minimizing the risk of bubbles forming within the body that could lead to serious health issues.

Safety stops typically take place at a depth of around 3 to 5 meters (10 to 15 feet) for a duration of 3 to 5 minutes after ascending from deeper dives. This practice allows divers to monitor their ascent rate and allows the body to release nitrogen that has accumulated during the dive.

While utilizing a dive computer, sharing dive information with friends, and understanding repetitive diving are important aspects of an overall safety protocol, they do not specifically address the immediate needs for mitigating the risks associated with ascent after a dive. Adequate safety stops are essential to ensure a safe transition from underwater to the surface, thereby enhancing overall diving safety.

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Use a dive computer for all dives

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