Document Detail


Transcutaneous measurement of the oxygen partial pressure using argon to correct for the oxygen consumption of the probe.
MedLine Citation:
PMID:  6528218     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The oxygen consumption of a transcutaneous probe creates an oxygen diffusion gradient between the skin capillaries and the probe, and this gradient causes the ratio between the oxygen partial pressure at the surface of the transcutaneous probe and the mean capillary pO2 to be less than 1. The ratio is usually increased towards unity by heating the skin to 43-45 degrees C, but this method introduces both practical and theoretical complications: the risk of skin burns and the increase in pO2 over the value in the blood at 37 degrees C. We present a new method to evaluate the ratio between the oxygen partial pressure at the surface of the transcutaneous probe and the mean capillary pO2. The method was used in measurements of the mean capillary pO2 in the skin of eight volunteers with a low-temperature probe (40 degrees C). The mean value of the ratio was 0.56 with a considerable variation from one person to another and from one skin location to another.
Authors:
J Hjarbaek; P Christensen; J Grønlund
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Scandinavian journal of clinical and laboratory investigation     Volume:  44     ISSN:  0036-5513     ISO Abbreviation:  Scand. J. Clin. Lab. Invest.     Publication Date:  1984 Dec 
Date Detail:
Created Date:  1985-03-26     Completed Date:  1985-03-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0404375     Medline TA:  Scand J Clin Lab Invest     Country:  NORWAY    
Other Details:
Languages:  eng     Pagination:  739-44     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Argon
Capillary Permeability
Humans
Manometry / instrumentation*
Mass Spectrometry
Oxygen Consumption*
Partial Pressure
Skin Temperature
Transducers, Pressure
Chemical
Reg. No./Substance:
7440-37-1/Argon

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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