Extended Viral PCR: Does It Help?

Researchers evaluate whether extended viral PCR testing is associated with antibiotic use and length of stay in adult inpatients.

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Extended respiratory viral PCR testing did not reduce hospital length of stay or antibiotic use in adult inpatients with respiratory infections.
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The study included 941 tests, with 330 meeting criteria for respiratory tract infection, but extended testing showed no significant management impact.
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Positive results from extended viral testing were found in 33% of cases, primarily detecting rhinovirus and influenza A.
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Test results were often delayed, with 20% available on discharge day and 21.5% after discharge, limiting clinical utility.
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The study's limitations include its retrospective design and the potential lack of generalizability beyond the single institution.

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