EOSINOPHIL, NASAL SMEAR
- Code
- 100.6800
- Name
- EOSINOPHIL, NASAL SMEAR
- Category
- None
- Department
- Hematology
- Start Date
- Expiration Date
- Synonyms
- Nasal Eosinophils
- CPT Codes
- 87205
- Site
- Main Lab
- Reference Test
Specimen Information
- Type
Swab
- Volume
- Transport Info
Room temperature
- Fasting Required?
- False
- Patient Instructions
Nasal Secretions:
Obtain specimens from each side of nose
Shape flexible wire handle of a mini-tip swab into contour of nares and nasopharynx
Insert mini-tip swab through nose to posterior nasopharynx
Leave swab in place near septum and floor of nose for 15-30 seconds, or until patient coughs.- Reference Range
Negative
- Methodology
Microscopic Examination
Clinical Significance
Investigate allergic, asthmatic disorders, and parasitic infestations.
The occurrence of eosinophils has been reported in allergic conditions including allergies to medication. The nasal smear for eosinophils is a reliable test with moderately high specificity especially in children with seasonal allergic rhinitis since nasal secretions of patients with allergic rhinitis usually contains increased numbers of eosinophils.