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Catecholamine stress responses in arterialized blood

Published online by Cambridge University Press:  30 April 2001

CATHERINE M. STONEY  and
JOEL W. HUGHES
CATHERINE M. STONEY
Affiliation:
Department of Psychology, Ohio State University, Columbus, USA
JOEL W. HUGHES
Affiliation:
Department of Psychology, Ohio State University, Columbus, USA
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Abstract

Arterialized and venous blood was compared to determine if the arterialization procedure enhances the detection of stress-related changes in catecholamines. Lipid and hematologic measures were also compared for possible distortion by arterialization. Fifteen men completed two stressors. Indwelling venous catheters were placed retrograde in each hand, and the right hand was warmed to a constant temperature. Blood samples were taken simultaneously from both hands, and plasma catecholamines were determined. Arterialization increased baseline epinephrine; there were no effects of arterialization on catecholamines during stress, nor in lipid or hematologic measures during baseline or stress. Thus, arterialization of blood results in small increases in resting epinephrine levels, but does not obscure lipid measures. More importantly, arterialization of venous blood does not enhance the detection of stress-related changes in catecholamines.

Keywords

CatecholaminesStress reactivityArterialized bloodLipid reactivity
Type
BRIEF REPORTS
Information
Psychophysiology , Volume 38 , Issue 3 , May 2001 , pp. 590 - 593
Copyright
2001 Society for Psychophysiological Research

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