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Eosinophil Count, Nasal
Test Code426
CPT Codes
89190
Preferred Specimen
2 air-dried nasal smears submitted in a slide holder
Minimum Volume
1 slide
Other Acceptable Specimens
Nasal smears
Transport Container
Slide Holder
Transport Temperature
Room temperature
Specimen Stability
Room temperature: Indefinitely
Refrigerated: Unacceptable
Frozen: Unacceptable
Refrigerated: Unacceptable
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Poor smear quality
Methodology
Microscopic Examination/Wright's Stain
Setup Schedule
Monday-Saturday All Shifts Report available: Next Day
Reference Range
≤2 % eos
Clinical Significance
Screening test to aid in diagnosis of allergic rhinitis.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153