How does the temperature effect ECP levels?

ImmunoCAP ECP

 
The temperature during the clotting process affects the ECP values.
Higher temperatures stimulate the eosinophils to an increased release of ECP. ECP values increase by about 10 - 15% per 1°C.
 
To obtain reproducible and comparable results, the clotting temperature should be as stable as possible during the clotting process and between different sampling occasions.
 
Recommended Clotting Temperature: + 20 - 24°C.

References
  1. Ahlstedt S, Enanader I, Peterson CG, Lanner Å. The clinical assessment of the inflammatory component in asthma with emphasis on the eosinophils. Pract Allergy Immunol 1993;8:149-154.
  2. Reimert CM, Poulsen LK, Bindslev-Jensen C, Kharazmi A, Bendtzen. Measurement of eosinophil cationic protein (ECP) and eosinophil protein X/eosinophil derived neurotoxin (EPX/EDN). J Immunol Methods 1993;166:183-190.
  3. Pronk-Admiraal CJ, Bartles PC. Effect of clotting temperature and eosinophil concentration on the eosinophil cationic protein concentration in serum. Scand J Clin Lab Invest 1994;54:185-188.
 
Further Reading