This study provided the first evidence of the biological comparability between serum retinol levels estimated from venous blood and capillary blood. This critical observation provides empirical evidence that this important indicator of vitamin A status may be measured from capillary blood, which has important implications for nonclinical population-based research.

Author(s): Gorstein J; Dary O; Pongtorn; Shell-Duncan B; Quick T; Hix J; Kandavasee; Wasanwisut E

Corporate author(s): PATH; Institute of Nutrition, Mahidol University

Publication date: 2005

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Related regions: Asia

See also: Health technologies > Diagnostic technologies

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Contact: PATH Publications
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