Which test is NOT typically used to diagnose Bronchiolitis/RSV?

The correct answer indicates that a complete blood count (CBC) is not typically used to directly diagnose bronchiolitis or respiratory syncytial virus (RSV) infection. In the context of diagnosing bronchiolitis, particularly in children, specific tests are employed to detect the presence of RSV or to identify respiratory infections more accurately.

RSV-enzyme immunoassay (EIA) is a targeted test used to identify RSV viral proteins in respiratory secretions, making it a crucial tool in diagnosing RSV-related bronchiolitis. Similarly, a respiratory infectious disease panel (RIDP) tests for multiple pathogens, including RSV, that can cause respiratory illnesses, further validating its relevance in diagnosis.

Chest X-rays, although not definitive for bronchiolitis, can help assess other potential complications such as pneumonia or rule out other conditions that may mimic bronchiolitis symptoms, thus supporting the diagnostic process.

On the other hand, a complete blood count (CBC) primarily evaluates overall health and identifies conditions such as infections or anemia but does not provide specific information regarding the presence of RSV or the diagnosis of bronchiolitis. As such, while a CBC may be performed for adjunctive purposes, it does not fulfill a direct role in diagnosing bron