Title

Continuous rapid infrared CO2 analysis. Fractional sampling and accuracy in determining alveolar CO2

Document Type

Article

Publication Date

4-1-1955

Publication Title

The Journal of Laboratory and Clinical Medicine

ISSN

00222143

Abstract

Detailed techniques are presented for a method of alveolar CO2 determination which utilizes a fractional to-and-fro continuous sampling method and a rapid infrared absorption gas analyzer with a direct recording system. The validity of the method was established by comparing the alveolar CO2 values with arterial CO2 tensions of blood drawn simultaneously. Twenty-two such comparisons reveal a mean deviation of -0.9 mm. Hg with a standard deviation of the mean of ± 1.8 mm. Hg. The limitations of the method are discussed. The method is compared with other methods for determining alveolar CO2 concentration. The practical value of the infrared method as a clinical guide to proper administration of artificial ventilation is demonstrated. © 1955.

Volume

45

Issue

4

First Page

526

Last Page

539

PubMed ID

14368014

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