EOSINOPHIL CATIONIC PROTEIN

Specimen Required
Draw blood in a SST. Gently invert the tube several times. Do not shake or vortex the tube. Release ECP by clotting for 60-120 minutes at room temperature. Centrifuge at 1000-1300 x g for 10 minutes at room temperature. Remove serum from cells and send 1.0 mL serum (0.3 mL minimum) frozen in a screw-capped plastic vial.

Alternate Specimen
Serum: Red-top

Rejection Criteria
Plasma, hemolysis

Methodology
Quantitative Fluorescent Enzyme Immunoassay

Stability
Room temperature: 48 hours; Refrigerated: 5 days; Frozen: 30 days

Reference Range
<17.8 µg/L

Performed
Sunday

Turnaround Time3-10 days
Test CodeEOSCP
CPT-4 Code (s)
83520
LOINC Codes
Eosinophil Cationic Protein:   25638-8  

Warde
Medical
Laboratory