Skip to main content
PMC home page
British Medical Journal logoLink to British Medical Journal
. 1968 Sep 14;3(5619):640–643. doi: 10.1136/bmj.3.5619.640

Use of Capillary Blood in Measurement of Arterial Po2

J MacIntyre, J N Norman, George Smith
PMCID: PMC1986564  PMID: 5673210

Abstract

In this study we investigated the possibility of obtaining accurate values of arterial Po2 from specimens of capillary blood stored in glass capillary tubes and measured in an oxygen microelectrode. It has been shown that Po2 measurements made on the Radiometer oxygen microelectrode are as accurate as those made on the macroelectrode and that the storage of blood is as satisfactory in glass capillary tubes as in glass syringes. The important feature in obtaining accurate values for arterial Po2 is the choice of the capillary bed and its method of preparation for sampling. If the ear lobe is massaged with thurfyl nicotinate (Trafuril) it is possible to obtain values of Po2 from the capillary blood which are in close agreement with arterial Po2 in normal, hyperoxic, and shocked vasoconstricted patients.

Full text

PDF
643

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Adams A. P., Morgan-Hughes J. O. Determination of the blood-gas factor of the oxygen electrode using a new tonometer. Br J Anaesth. 1967 Feb;39(2):107–113. doi: 10.1093/bja/39.2.107. [DOI] [PubMed] [Google Scholar]
  2. Eldrige F., Fretwell L. K. Change in oxygen tension of shed blood at various temperature. J Appl Physiol. 1965 Jul;20(4):790–792. doi: 10.1152/jappl.1965.20.4.790. [DOI] [PubMed] [Google Scholar]
  3. Greenbaum R., Nunn J. F., Prys-Roberts C., Kelman G. R. Metabolic changes in whole human blood (in vitro) at 37 degrees C. Respir Physiol. 1967 May;2(3):274–282. doi: 10.1016/0034-5687(67)90032-1. [DOI] [PubMed] [Google Scholar]
  4. Johnstone J. H. Measurement of arterial and capillary blood oxygen tension. J Clin Pathol. 1966 Jul;19(4):357–363. doi: 10.1136/jcp.19.4.357. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Kelman G. R., Nunn J. F. Nomograms for correction of blood Po2, Pco2, pH, and base excess for time and temperature. J Appl Physiol. 1966 Sep;21(5):1484–1490. doi: 10.1152/jappl.1966.21.5.1484. [DOI] [PubMed] [Google Scholar]
  6. Lenfant C., Aucutt C. Oxygen uptake and change in carbon dioxide tension in human blood stored at 37 C. J Appl Physiol. 1965 May;20(3):503–508. doi: 10.1152/jappl.1965.20.3.503. [DOI] [PubMed] [Google Scholar]
  7. NUNN J. F. Measurement of blood oxygen tension: handling of samples. Br J Anaesth. 1962 Sep;34:621–630. doi: 10.1093/bja/34.9.621. [DOI] [PubMed] [Google Scholar]
  8. Rhodes P. G., Moser K. M. Sources of error in oxygen tension measurement. J Appl Physiol. 1966 Mar;21(2):729–734. doi: 10.1152/jappl.1966.21.2.729. [DOI] [PubMed] [Google Scholar]

Articles from British Medical Journal are provided here courtesy of BMJ Publishing Group

RESOURCES