Journal Article

Procalcitonin as a Biomarker in Respiratory Tract Infection

David N. Gilbert

in Clinical Infectious Diseases

Published on behalf of Infectious Diseases Society of America

Volume 52, issue suppl_4, pages S346-S350
Published in print May 2011 | ISSN: 1058-4838
Published online May 2011 | e-ISSN: 1537-6591 | DOI: https://dx.doi.org/10.1093/cid/cir050
Procalcitonin as a Biomarker in Respiratory Tract Infection

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Serum procalcitonin (PCT) levels rapidly increase in patients with invasive bacterial disease. PCT levels increase faster than do C-reactive protein levels. Furthermore, a rapid decrease in the PCT level is supporting evidence that the source of the bacterial infection is responding to clinical management. In patients with community-acquired bacterial pneumonia, sequential PCT levels are useful as a guide to shorter courses of antimicrobial therapy. With use of emerging multiplex real–time polymerase chain reaction platforms for the detection of viral and bacterial respiratory pathogens, it should be possible to critically assess whether an elevated serum PCT level is a valid biomarker of invasive bacterial infection.

Journal Article.  3414 words. 

Subjects: Infectious Diseases ; Immunology ; Public Health and Epidemiology ; Microbiology

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