Abstract
The basic physical measurements for determining gas exchange are difficult to make accurately even in a well-equipped, human-performance laboratory with experienced personnel. A fully automated system has been developed to achieve the accuracy of standard laboratory measurements. The application of this instrument extends from critical care to stress-testing. Real-time, multitasking software integrates the data collected from several transducers and analyzers and calculates up to several dozen physiological variables, which are range-checked for reasonableness. The operator is provided with user-friendly means to tailor the data-reporting and-collection functions of the system to his own needs and requirements. Because the instrument is controlled by software, the functions of calibration, measurement, timing, reporting, plotting, and data quality assurance are highly cost-effective. Extensive use of formal test procedures permits verifying all systems and data reliability; it also assures meeting the desired specifications. The ease of operation and high-quality results inherent in this system make it unsurpassed in gas-exchange measurements.
Similar content being viewed by others
ReferencesReferences
Norton, A. C., Development and testing of microprocessor-controlled system for measurement of gas exchange and related variables in man during rest and exercise. Report No. 025. Beckman Instruments, Inc.
Norton, A. C., Johnston, M., Frick, G., and Foster, S.,Use of a microprocessor and software in an automated system for measurement of gas exchange in critically ill patients. Paper presented at the Fifth Annual International Symposium on Computers in Critical Care and Pulmonary Medicine, June 1–3, 1983, Salt Lake City.
Kannagi, T., Bruce, R. A., Hossack, K. F., Chang, K., Kusumi, F., and Trimble, S., An evaluation of the Beckman Metabolic Cart for measuring ventilation and aerobic requirements during exercise.J. Cardiac Rehab. 3:38–53, 1983.
Norton, A. C., Portable equipment for gas exchange.Assessment of Energy Metabolism in Health and Disease (J. Kinney, ed.), Ross Laboratories, Columbus, Ohio, 1980.
Norton, A. C., Mashikian, V., Wilmore, J. H., and Rader, C. D., Development and evaluation of a metabolic measurement cart.Proc. S. Diego Biomed. Symp. 15:139–145, 1976.
Wilmore, J. H., Davis, J. A., and Norton, A. C., An automated system for assessing metabolic and respiratory function during exercise.J. Appl. Physiol. 40:619–624, 1976.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Jaffe, M.B., Frick, G., Wilson, D. et al. A microprocessor-based system for measurement of gas exchange. J Med Syst 8, 437–450 (1984). https://doi.org/10.1007/BF02285256
Issue Date:
DOI: https://doi.org/10.1007/BF02285256