Bronchiolitis laboratory tests

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Laboratory Findings

Testing for specific viral cause (e.g. RSV by nasopharyngeal aspirate) is common, but has little effect on management. Identification of RSV-positive patients can be helpful for:

• Disease surveillance
• Grouping ("cohorting") patients together in hospital wards as to prevent cross infection
• Predicting whether the disease course has peaked yet
• Reducing the need for other diagnostic procedures (by providing confidence that a cause has been identified)

Tests include:

• Blood gases
• Nasal fluid cultures (to determine which virus is present)