Ads
related to: 100 ft underwater pressure treated post cost increase
Search results
Results From The WOW.Com Content Network
Heliox or Nitrox with partial pressure not exceeding 3 ata may be used as treatment gas at pressures less than 165 fsw; 100% oxygen may be used as treatment gas at pressures less than 60 fsw; Decompression is done by 2 fsw pressure decrements unless the start depth is an odd number, in which case the first stop is at a 3 fsw reduction in pressure.
As of 1990, ascent rates used in tables and dive computers ranged from constant ascent rates of 33, 40, and 60 fpm, from all depths, to variable depth dependent rates of 60 fpm for depths below 100 ft, 40 fpm for depths between 100 and 60 ft, and 20 fpm for depths less than 60 ft in the ORCA dive computers.
Hyperbaric medicine includes hyperbaric oxygen treatment, which is the medical use of oxygen at greater than atmospheric pressure to increase the availability of oxygen in the body; [8] and therapeutic recompression, which involves increasing the ambient pressure on a person, usually a diver, to treat decompression sickness or an air embolism by reducing the volume and more rapidly eliminating ...
diving at altitude – diving in water whose surface pressure is significantly below sea level pressure – for example, Lake Titicaca is at 3,800 m (12,500 ft). Versions of decompression tables for altitudes exceeding 300 m (980 ft), or dive computers with high-altitude settings or surface pressure sensors may be used to reduce this risk.
The body can tolerate partial pressures of oxygen around 0.5 bars (50 kPa; 7.3 psi) indefinitely, and up to 1.4 bars (140 kPa; 20 psi) for many hours, but higher partial pressures rapidly increase the chance of the most dangerous effect of oxygen toxicity, a convulsion resembling an epileptic seizure. [14]
A university professor who spent 100 days living underwater at a Florida Keys lodge for scuba divers resurfaced Friday and raised his face to the sun for the first time since March 1. Dr. Joseph ...