pyrogen

(pī′rō-jĕn )

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[Gr. pyr, fire, + gennan, to produce]
Any agent that causes fever. It may be exogenous, such as bacteria or viruses, or endogenous, produced in the body. The latter are usually in response to stimuli accompanying infection or inflammation.
SYN: SEE: pyrexin; SEE: pyrotoxin
pyrogenic (pī″rō-jĕn′ĭk )
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, adj.
Descriptive text is not available for this imageA fluid that has been opened previously and allowed to stand should not be given intravenously, even though the top may have been closed tightly, because pyrogens may have formed within it.

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