Eosinophil Cationic Protein (ECP)

Casandra

Casandra Test Code AR85035Version 1 (DRAFT)

Performing Lab

Lab ARUP LaboratoriesLab Test ID 3000537CPT Code 83520

Eosinophil Cationic Protein (ECP)

Also known as: EC PROT

Clinical Use

Order Test

Use

The Eosinophil Cationic Protein (ECP) test is designed to monitor inflammation caused by asthma and to optimize corticosteroid treatment in asthmatic patients. Elevated levels of ECP are associated with eosinophilic inflammation and can be indicative of asthma activity. The test aids in evaluating the effectiveness of therapeutic interventions and in guiding dosage adjustments for improved patient outcomes.

Special Instructions

Ensure proper handling of the serum separator tube to avoid hemolysis, lipemia, or icterus, which are unacceptable conditions for testing. Follow specified specimen preparation instructions carefully.

Limitations

This test was developed and its performance characteristics were determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. Caution is advised in the interpretation of results, as this is a Laboratory Developed Test intended for clinical purposes. Results should be considered in conjunction with clinical evaluation and not as a standalone diagnostic tool.

Test Details

New York Approved

Methodology

Immunoassay (Quantitative Fluorescent Enzyme Immunoassay)

Biomarkers

Eosinophil Cationic Protein

Protein

Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)

LOINC Codes

Order Codes

25638-8

Result Turnaround Time

1-8 days

Specimen

Serum

Volume

1 mL

Minimum Volume

0.25 mL

Container

ARUP Standard Transport Tube

Collection Instructions

Collect blood by venipuncture using a Serum separator tube (SST). Gently invert the tube several times. Do not shake or vortex the tube. Allow ECP to be released by clotting for 60-120 minutes at room temperature (20-24° C). Centrifuge at 1000-1300 x g for 10 minutes at room temperature.