Accession Number : AD0620454

Title :   THE EFFECTS OF DECOMPRESSION ON SUBJECTS REPEATEDLY EXPOSED TO 43,000 FEET WHILE USING STANDARD PRESSURE BREATHING EQUIPMENT: INVOLUNTARY HYPERVENTILATION DURING PRESSURE BREATHING AT 43,000 FEET.

Descriptive Note : Research rept.,

Corporate Author : NAVAL SCHOOL OF AVIATION MEDICINE PENSACOLA FLA

Personal Author(s) : Hall,Arthur L.

Report Date : 20 FEB 1952

Pagination or Media Count : 10

Abstract : Thirty-six healthy young male Navy seamen were exposed to a simulated altitude of 43,000 feet for one-half hour a day for 20 consecutive work days. Continual anoxia photometer readings were taken on each subject to determine arterial blood oxygen saturations. X-rays, electrocardiograms and speech intelligibility tests were taken for each subject. This paper is a report of the incidence of involuntary hyperventilation in these subjects. Other physiological phenomena observed will be reported in other papers. A total of 43 cases of involuntary hyperventilation were observed during 695 man-exposures (240.7 man-hours) at 43,000 feet. The similarity of early subjective symptoms of hypoxia and hyperventilation is noted. (Author)

Descriptors :   (*PRESSURE BREATHING, OXYGEN), (*OXYGEN, POISONING), BREATHING APPARATUS, HIGH ALTITUDE, DECOMPRESSION, AVIATION MEDICINE

Distribution Statement : APPROVED FOR PUBLIC RELEASE