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HelpTest Code LAB328 Eosinophil Count - Nasal
Department
HEMATOLOGY
Collection Requirements
Contact the laboratory for collection instructions.
Collect nasal secretions with a sterile cotton tipped swab. Roll moistened swab,very gently, over 2-4 clean slides.
Air dry immediately (by hand waving of slides or using a small fan).
Primary Collection Container
Slide
Transport
Ambient
Preferred Transport Temperature
Ambient
Processing
Slides in a slide holder.
Send to lab ASAP.
Stability
Indefinate after slides are prepared
Minimum Testing Volume
2 slides/smears
Reference Range
There is no listed reference range for eosinophilia in nasal specimens, but it is thought that eosinophils present in a percentage of 20%, or greater, is a sign of an allergic reaction.
Methodology
Microscopic
Performed
Sunday – Saturday
Reported
As completed
CPT Codes
89190
Unacceptable Conditions
Inadequate collection.
Smears too thick.
Not using a fresh specimen.