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  • β-HCG Test Kit
    【Product Name】 Total Beta-Human Chorionic Gonadotropin (β-HCG) Test Kit (Immunofluorescence) 【Package specifications】 25 Tests /Box 【Intended use】 Total Beta-Human Chorionic Gonadotropin (β-HCG) Test Kit (Immunofluorescence) is mainly for the in vitro quantitative determination of β-HCG in human serum for the early detection of pregnancy. Human Chorionic Gonadotropin (HCG) is a glycoprotein hormone normally produced by placenta during pregnancy. Structurally intact hCG molecules consist of two non-covalently linked polypeptide subunits, the alpha and beta chain subunits. The α-subunit is common to luteinizing hormone (LH), follicle stimulating hormone (FSH) and thyroid stimulating hormone (TSH), while the β-subunit is unique to hCG. Amino acid residues specific for the β-subunit of hCG confer the immunochemical specificity. HCG is synthesized by trophoblastic tissue of the placenta in pregnancy, although it can be produced by other cells in various disease states. Serum concentrations of biologically active hCG (nonnicked hCG) rise exponentially in the first trimester of pregnancy, doubling every 48h, to a peak at about 10 weeks of gestation (weeks since last menstrual period). Concentrations decrease from the 10th to the 16th week of gestation, reaching approximately one-fifth of peak concentrations, and remain around this concentration until term. The hormone is present in pregnancy  serum and urine samples, along with a variety of dissociated or degraded hCG. With the availability of sensitive quantitative assays for the measurement of serum β-HCG, it has been shown that β-HCG levels can be useful in prediction of spontaneous abortions, aiding in the detection of ectopic pregnancy and multiple gestation. 【Accessories required but not provided】 ♢ Immunofluorescence quantitative analyzer ♢ Reagent strip incubator ♢ Pipette 【Storage and stability】 Sealed: The kit must be stored at 4-30℃, valid for 24 months. The sample diluent must be stored at 4-30℃, valid for 24 months. Opened: The cartridge must be used within 1 hour once its foil pouch is opened. The sample diluent is valid for 1 month once it is opened.

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