Which physical sign can indicate allergies during a HEENT exam?

Pale, boggy nasal mucosa is a classic sign associated with allergic rhinitis during a HEENT examination. In allergic reactions, the histamine release causes inflammation and increased blood flow to the mucous membranes, leading to the swelling and characteristic pale appearance. The bogginess reflects the edema present due to the inflammatory response.

This sign contrasts with other conditions, such as viral infections, where the nasal mucosa tends to be red and inflamed. While swollen lymph nodes may be present in various infections and other conditions, they are not specific indicators of allergies. Red and itchy eyes can also occur in allergic reactions, but they are more indicative of conjunctivitis, not solely the nasal symptoms. Clear and watery eyes can suggest allergies, yet they are not as definitive as the observation of pale, boggy nasal mucosa in the context of a HEENT assessment focused on nasal findings.