Glossary
ATA
Atmospheres Absolute — the unit of pressure used in hyperbaric medicine.
ATA stands for atmospheres absolute, the standard unit for chamber pressure. 1 ATA is normal pressure at sea level. Clinical hyperbaric treatment typically runs at 2.0–2.8 ATA, meaning two to nearly three times sea-level pressure — equivalent to descending 33–60 feet underwater.
More terms
US Navy Treatment Table 6
The standard recompression protocol for serious decompression sickness.
Barotrauma
Injury from pressure changes, most commonly to the ears.
Decompression sickness
Illness from nitrogen bubbles forming after rapid ascent from depth.
Henry's Law
The physical law explaining why pressure forces more oxygen into blood plasma.