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Test Code LAB10024 Eosinophil Count - Sputum

Department

HEMATOLOGY

Collection Requirements

Contact the laboratory for collection instructions.

Collect sputum in a sterile cup (coughed from bronchi and/or lungs). Moisten a dry swab with sputum and roll the 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

Sterile Cup

Alternate Collection Container

Swab

Slide

Transport

Ambient: Slides in a slide holder.

Refrigerated: Sterile cup if sending without preparing slides.

Preferred Transport Temperature

Ambient: Slide

Refrigerated: Sputum

Processing

Send to lab ASAP.

Stability

Ambient: 2 hours

Refrigerated: 8 hours

Minimum Testing Volume

1.0 mL

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.

Not using a fresh specimen.