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Test Code EONS Nasal Smear, Examination for Eosinophils


Wright Stained Smear

Performing Laboratory

Munson Healthcare Laboratories

Specimen Requirements

Specimen should arrive within 24 hours of collection.


1. Have patient blow nose into a sheet of waxed paper.

2. Select turbid and/or colored portions of nasal secretion; and using a cotton swab, apply to glass slide, creating a thin smear, if possible. If patient is too young to blow their nose, retrieve as much mucus as possible from the nose with a cotton swab and apply to a glass slide in a thin film, if possible.

3. Label slide with patient’s name (first and last), and date and time of collection.

4. Send specimen refrigerated.

5. Maintain sterility and forward promptly.

Reference Values

>20% indicates allergy

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding