In altitude diving, which correction factor is added to max depth per 1000 feet of altitude?

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Multiple Choice

In altitude diving, which correction factor is added to max depth per 1000 feet of altitude?

Explanation:
Altitude lowers the pressure at the surface, so the absolute pressure you experience at a given depth is lower than what standard sea-level tables assume. To keep depth limits aligned with those tables and the tissue-loading they were designed to protect, a small correction is added to the maximum depth: 1 fsw for every 1,000 feet of altitude. This means you can safely increase the maximum depth by about 1 fsw for each 1,000 feet of elevation. For example, at 5,000 feet, you'd add roughly 5 fsw to the sea-level maximum depth. This practical rule helps maintain safe decompression planning when diving at altitude.

Altitude lowers the pressure at the surface, so the absolute pressure you experience at a given depth is lower than what standard sea-level tables assume. To keep depth limits aligned with those tables and the tissue-loading they were designed to protect, a small correction is added to the maximum depth: 1 fsw for every 1,000 feet of altitude. This means you can safely increase the maximum depth by about 1 fsw for each 1,000 feet of elevation. For example, at 5,000 feet, you'd add roughly 5 fsw to the sea-level maximum depth. This practical rule helps maintain safe decompression planning when diving at altitude.

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