Abstract
Piperacillin-tazobactam (PTZ) is known to cause false-positive results in the Platelia Aspergillus enzyme-linked immunoassay (EIA), due to contamination with galactomannan (GM). We tested 32 lots of PTZ and 27 serum specimens from patients receiving PTZ. GM was not detected in the lots of PTZ; one serum specimen (3.7%) was positive. PTZ formulations commonly used in the United States today appear to be a rare cause for false-positive GM results.
Copyright © 2014, American Society for Microbiology. All Rights Reserved.
MeSH terms
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Aged, 80 and over
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Anti-Bacterial Agents / chemistry
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Anti-Bacterial Agents / therapeutic use*
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Aspergillosis / diagnosis*
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Aspergillus / isolation & purification*
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Diagnostic Tests, Routine / methods*
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Drug Contamination
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False Positive Reactions*
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Female
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Galactose / analogs & derivatives
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Humans
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Immunoenzyme Techniques / methods
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Mannans / blood*
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Penicillanic Acid / analogs & derivatives
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Penicillanic Acid / chemistry
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Penicillanic Acid / therapeutic use
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Piperacillin / chemistry
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Piperacillin / therapeutic use
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Piperacillin, Tazobactam Drug Combination
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Serum / chemistry*
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United States
Substances
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Anti-Bacterial Agents
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Mannans
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galactomannan
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Piperacillin, Tazobactam Drug Combination
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Penicillanic Acid
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Piperacillin
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Galactose