| 摘要 |
A respiratory gas analyzer (10) for measuring the cardiac output of a subjec t includes a flow meter (14) and an oxygen sensor (16) interconnected with one another between a mouthpiece (12) and a source of respiratory gases which ma y be a controlled source or the atmosphere. An oximeter (26) provides measurements of the oxygen saturation of the subject. A computer connected t o receive the signals from the flow meter (14), oxygen sensor (16), and oximet er (26) can then calculate the subject's cardiac output.
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