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Definition of Central line

Central line: An infusion tube located in or near the heart, which is at the center of the circulatory system. For example, a Swan-Ganz catheter with its tip in the right atrium and ventricle of the heart is a central line.

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=14394
Last Editorial Review: 3/19/2012

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