False-positive Aspergillus antigen testing due to application of piperacillin/tazobactam--is it still an issue?

Diagn Microbiol Infect Dis. 2008 Jan;60(1):117-20. doi: 10.1016/j.diagmicrobio.2007.07.020. Epub 2007 Sep 21.

Abstract

We evaluated the impact of piperacillin/tazobactam (PT) therapy on galactomannan enzyme immunoassay (GEI) testing (Platelia; Bio-Rad, Marnes La Coquette, France). Galactomannan contents of PT batches were highly variable. We found that false-positive GEI results can be avoided by performance of blood sampling before PT administration and by using separate sites for blood sampling and for administration of antibiotics.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Antigens, Fungal / blood*
  • Aspergillosis / diagnosis*
  • False Positive Reactions
  • Galactose / analogs & derivatives
  • Humans
  • Immunoenzyme Techniques / methods
  • Mannans / blood*
  • Penicillanic Acid / analogs & derivatives*
  • Penicillanic Acid / therapeutic use
  • Piperacillin / therapeutic use*
  • Tazobactam

Substances

  • Antigens, Fungal
  • Mannans
  • galactomannan
  • Penicillanic Acid
  • Tazobactam
  • Piperacillin
  • Galactose