EFFICIENCY OF VARIOUS TYPES OF ARTIFICIAL RESPIRATION AT HIGH ALTITUDES

Abstract

Studies were made to determine the efficiency of the Eve tilt board, Schafer prone pressure method, pulmotor, Drinker respirator and the barospirator in the resuscitation of the rat at Denver''s altitude (5280 ft.) and at altitudes approximating 40,000 ft. At both high and low altitudes the mechanical methods for artificial respiration were superior to manual methods. At high altitudes a low environmental temp, facilitated resuscitation and the admn. of O2 proved especially beneficial to the circulation. Since the circulatory response always preceded the respiratory response, stimulation of the circulation is probably important in bringing about the resumption of respiration. Respiratory stimulants were not effective in producing a respiratory response in the rat at high altitudes.