Relationship Between Cardiac Output and Ventilation and Gas Transport, With Particular Reference to Anesthesia

The expiratory capnogram: a measure of ventilation-perfusion inequalities.

“…APPENDIX Theoretical analysis indicates a reasonably fixed arteriovenous Pco2 difference at rest, despite varying cardiac output (Suskind and Rahn, 1954). This difference has been shown to be about 6 mm.…”

The Effects of Voluntarily Controlled Alveolar Hyperventilation on Carbon Dioxide Excretion

“…The time constants of the lung and tissue stores were related to alveolar ventilation but not those representing the blood stores. This implied that the exponential functions were not exactly representative of the stores because the rate of removal of carbon dioxide from blood should be related to the alveolar ventilation [Suskind and Rahn, 1954]. However, other attempts to recognize the sources of carbon dioxide expired using electrical analogues [Farhi and Rahn, 1960;Cherniack et al, 1966] have met equal difficulties and it is considered that the method reported offers a useful way of indicating the relative contributions of the different body stores to the output of carbon dioxide during hyperventilation.…”

A Time-Phased End Tidal Sampler Suitable for Use During Anaesthesia

“…Not only is the instrument dead space too high for the reduced tidal volumes which may be encountered, but in most anaesthetic systems there is some admixture of expired gas with surplus fresh gas supply during the latter part of expiration. Suskind and Rahn (1954) have used a method of this type during intravenous anaesthesia. Krogh and Lindhard (1914) used the volume of gas expired to actuate collection of samples from various fractions of expired gas.…”