Spirolit-2 instrument used to test pulmonary ventilation
Abstract
At the present time, the Spirolit-2 automatic analyzer of main respiratory gases, of the Junkalor Dessau firm, is used to examine parameters of gas exchange, levels of energy expended by man and animals with different degrees of activity. However, the capabilities of this model of the instrument are limited. A method of determining pulmonary ventilation with use of the Spirolit-2 is described. An additional exhalation valve is built into a valve box to which an anesthesia machine rubber bag is attached. Samples are collected into another bag concurrently with the usual tests on the Spirolit-2 instrument. Four to five minutes are sufficient to obtain stable parameters at relative rest of oxygen uptake, determine carbon dioxide output per minute and collect samples in for analysis of exhaled air. The proposed method can furnish information about the dynamics of development of respiratory function of the lungs at virtually any moment with a constant physical load. For this, there must be spare bags to collect samples. Stage-by-stage data can be obtained analogously as to ventilation volume during a step test while determining maximum oxygen uptake.
- Publication:
-
USSR Rept Space Biol Aerospace Med Sep
- Pub Date:
- February 1985
- Bibcode:
- 1985RpSBA..18..113Z
- Keywords:
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- Bioinstrumentation;
- Pulmonary Circulation;
- Respiratory System;
- Ventilation;
- Carbon Dioxide;
- Gas Exchange;
- Human Beings;
- Sampling;
- Instrumentation and Photography