Which is not a common cause of allergic fungal sinusitis?

Correct Answer: C

Rationale: Candida is not a common cause of allergic fungal sinusitis, unlike Aspergillus, Alternaria, Cladosporium, and Penicillium.

Correct Answer: D

Rationale: TTN typically shows fluid in fissures and prominent vascular markings but not a diffuse reticulogranular pattern, which is more characteristic of RDS. The other options are true for TTN.

Correct Answer: B

Rationale: Yellow jackets are highly aggressive and responsible for the majority of insect sting-related allergic reactions due to their frequent and painful stings.

Correct Answer: B

Rationale: Exercise does not contribute to hormonal rhinitis, which is typically associated with hormonal imbalances from conditions such as pregnancy, thyroid dysfunction, or systemic diseases.

Correct Answer: D

Rationale: RAST measures antigen-specific serum IgE concentrations to identify allergens.