Nasal Lavage Fluid

**Definition:** Fluid obtained by THERAPEUTIC IRRIGATION or washout of the nasal cavity and NASAL MUCOSA. The resulting fluid is used in cytologic and immunologic assays of the nasal mucosa such as with the NASAL PROVOCATION TEST in the diagnosis of nasal hypersensitivity.

**Tree numbers:** - E05.927.573.500

**Synonyms:** - Nasal Washings