Comparative measurement of CNP and NT-proCNP in human blood samples: a methodological evaluation

Conclusions: CNP and NT-proCNP are stable for at least two hours, even when sample processing is delayed or blood probes are stored at room temperature. NT-proCNP assay demonstrated more consistent and reliable data and should therefore be preferred for usage in clinical applications. Nevertheless, as recommended for ANP and BNP, immunoassays for CNP should also be standardized or harmonized in the future.
Source: Journal of Negative Results in BioMedicine - Category: Research Authors: Source Type: research