Accession Number:

ADA224080

Title:

Hypercapnia during Deep Air and Mixed Gas Diving

Descriptive Note:

Final rept.

Corporate Author:

NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL

Personal Author(s):

Report Date:

1990-05-01

Pagination or Media Count:

23.0

Abstract:

Elevated carbon dioxide CO2 levels in the blood, hypercapnia, can limit work capacity and diver safety. The risk of hypercapnia was determined in six U.S. Navy divers with underwater bicycle ergometery at 190 feet of sea water FSW breathing air, plus 300 and 1,000 FSW breathing helium-oxygen using a helmet oro-nasal maskdemand regulator. Peak-to-peak mouth pressure Delta P and breath-to-breath end-tidal partial pressure of CO2 PETCO2 were measured during sixth min of exercise total work 193 watts.

Subject Categories:

  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE