Abstract:
:A CO2 rebreathing method for the measurement of cardiac output was evaluated by comparison with the direct Fick O2 method in 26 studies performed in 18 patients who were critically ill. The method requires measurement of CO2 output by collection of expired gas, of arterial PCO2, and of mixed venous PCO2 by rebreathing. Twenty-five comparisons were within +/- 20% of the direct Fick measurements, at cardiac outputs varying between 1.4 and 6.4 L/min. Knowledge of the cardiac output increased the quality of the interpretation of arterial blood PO2 measurements in the assessment of pulmonary gas exchange disturbances.
journal_name
Chestjournal_title
Chestauthors
Davis CC,Jones NL,Sealey BJdoi
10.1378/chest.73.2.167subject
Has Abstractpub_date
1978-02-01 00:00:00pages
167-72issue
2eissn
0012-3692issn
1931-3543pii
S0012-3692(16)38668-8journal_volume
73pub_type
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