The systemic increase in acute-phase proteins due to inflammation is called what?

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The systemic acute-phase response is triggered by inflammation, with cytokines like IL-6 signaling the liver to increase production of acute-phase proteins such as CRP, serum amyloid A, ferritin, and fibrinogen. This coordinated rise is called the acute-phase reaction (or acute-phase response). It’s the best answer because it specifically describes the body’s systemic increase in acute-phase proteins in response to inflammation. The other phrases refer to different phenomena: a chronic inflammatory state implies long-lasting inflammation, an autoimmune flare denotes renewed autoimmune disease activity, and hyperviscosity syndrome involves unusually thick blood not directly tied to acute-phase protein production. The essential idea is the liver-driven, cytokine-mediated surge of acute-phase proteins during inflammation.