| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Eosinophils, Nasal
MessagePerforming Lab: Lakeview, Regions
Test Code
0019
Alias/See Also
Sunquest: NASAL
CPT Codes
89190
Preferred Specimen
Nasal secretions on a clean, air-dried, glass slide
Minimum Volume
Slide
Other Acceptable Specimens
Fluid in a sterile container delivered immediately to the lab
Instructions
The physician may collect the specimen by aspiration or cotton-tipped swab and must make the smears immediately after collection
Transport Temperature
Room Temperature
Specimen Stability
Room Temperature
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Nasal swab
Methodology
Microscopic examination
Setup Schedule
Daily
Report Available
Same Day
Limitations
Evaluation for eosinophils is dependent upon an adequate sample, a well-prepared smear and properly stained slide
Reference Range
No Eosinophils, No PMN's
Clinical Significance
Eosinophils in the nasal secretions of patients with rhinitis and in the airways of asthmatics are diagnostic of an allergic process. Eosinophils are known to play a role in fibrosis, thrombosis and the activation of mast cells. Eosinophils also play a role in the immunologic defense of parasites. A predomination of neutrophils may indicate an infectious process
