...R. I. Stewart; C. M. Lewis 1. The CO 2 -rebreathing indirect Fick method of cardiac-output measurement was compared with the standard invasive direct Fick method for oxygen during rest and treadmill exercise in 15 patients with pulmonary disease characterized by the common feature of expiratory...

...Ikuo Homma; Shigeru Kageyama; Takeshi Nagai; Ikuo Taniguchi; Toshio Sakai; Masakazu Abé 1. By using the rebreathing method, ventilatory responses to inhaled CO 2 were studied in patients with diabetic neuropathy. 2. Their general respiratory functions including vital capacity (VC) and forced...

...Mary Winsborough; J. N. Miller; D. W. Burgess; G. Laszlo 1. A new CO 2 -rebreathing method for estimating cardiac output is described, and compared with a method employing N 2 O performed at the same time. 2. The subject inhales from a reservoir of 30% O 2 in N 2 and rebreathes into and out...

...G. J. F. Heigenhauser; N. L. Jones 1. Duplicate measurements were made of mixed venous P co 2 ( P v̄, co 2 ) by two rebreathing methods during steady-state exercise at three power outputs in seven subjects. One method employed a high initial bag CO 2 concentration to obtain equilibrium of CO 2...

... Medical Center, 800 Rose Street, Lexington, Kentucky 40506, U.S.A. centre, but also affected by random variations in the measurements and probably by changes in lung volume. Key words: mouth occlusion pressure, rebreathing, respiratory centre motor output, ventilatory response. Introduction...

...Reiah Al-Dulymi; R. Hainsworth 1. A new open-circuit respiratory method was developed to estimate mixed venous P co 2 more rapidly and accurately than is possible with rebreathing techniques. 2. The subject breathes a mixture of CO 2 in air from an open circuit. Carbon dioxide is added to the air...