How does clotting time effect ECP levels?

ImmunoCAP ECP

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The eosiniphil release of ECP in vitro during clotting is time-dependent. ECP levels in serum increase with time as the ECP release from the eosinophils will continue until serum is separated from the cells. In a healthy person, the difference between plasma and serum levels is less than in a patient with an inflammatory disease.
 
Recommended Clotting Times: 60-120 minutes.

References
  1. Venge P. Surrogate markers for monitoring inflammation in asthma. Clin Exp Allergy 1993;23 suppl2:3-7
  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.