### Patient: Doctor, my child has been having a cough and a hoarse voice. I think it might be croup. What medical tests do you recommend?
### Doctor: For croup, we typically start with nebulizer therapy to help manage the symptoms. However, we might also perform an influenzavirus antibody assay to rule out any possible viral infections that could be causing the croup. If the nebulizer therapy and influenza test do not provide relief, we may need to consider other respiratory therapy options or even more invasive tests, such as diagnostic bronchoscopy and biopsy of the bronchus or tracheoscopy and laryngoscopy with biopsy to further assess the extent of the croup.