This assay is intended for in vitro quantitative determination of carcinoembryonic antigen in human serum and plasma. The test kit is used as an aid in the management of cancer patients in whom changing CEA concentrations have been observed. For professional and laboratory use only. For in vitro diagnostic use only. Shelf life: ● 18 months Storage: ● 2 - 30℃, away from sunlight * No cold chain