PULMONARY GAS EXCHANGE AND URINARY ELECTROLYTE EXCRETION DURING SATURATION-EXCURSION DIVING TO PRESSURES EQUIVALENT TO 800 AND 1000 FEET OF SEAWATER

摘要: Abstract : Pulmonary gas exchange and related renal regulation as indicated in urinary electrolyte were measured during saturation-excursion dives to 800 1000 feet of sea water (FSW) for the purpose determining beginning physiological limitations underwater operations at these depths. Alveolar CO2 tension, oxygen consumption, excretion did not change significantly from pre-dive control values rest exercise (100 watt) FSW, which indicates that there is no respiratory limitation moderate work load depth FSW. Urinary showed a characteristic pattern period, consisting increased urine volume, large rise bicarbonate excretion, decrease chloride excretion. Bends respond recompression found be associated with increases appear caused by excessive fluid shifts. It suggested such cases liquid therapy should instituted compensate loss dive.