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βhCG
Beta-Human Chorionic Gonadotropin
REF: DS177712
Please note
The measured hCG value of a patient’s sample can vary depending on
the testing procedure used. The laboratory finding must therefore
always contain a statement on the hCG assay method used. hCG values
determined on patient
samples by different testing procedures cannot be directly compared
with one another and could be the cause of erroneous medical
interpretations.
If there is a change in the hCG assay procedure used while
monitoring therapy, then the hCG values obtained upon changing over
to the new procedure must be confirmed by parallel measurements
with both methods.
Intended use
Immunoassay for the in vitro quantitative determination of the sum
of human chorionic gonadotropin (hCG) plus the hCG β‐subunit in
human serum.
Summary
Similarly to LH (Luteinizing hormone), FSH (Follicle‐stimulating
hormone) and TSH (Thyroid‐stimulating hormone), human chorionic
gonadotropin (hCG) is a member of the glycoprotein family and
consists of 2 subunits (α‐1 and β‐chains) which are associated to
form the intact hormone.1 The α‐chains in all four of these
glycoprotein hormones are virtually identical, whereas the β‐chains
have greatly differing structures andare responsible for the
respective specific hormonal functions.2 hCG is produced in the
placenta during pregnancy. In non‐pregnant women, it can also be
produced by tumors of the trophoblast, germ cell tumors with
trophoblastic components and some non‐trophoblastic tumors.3 hCG
assays detecting the intact hCG plus the free β‐subunit are well
established markers as an aid in the management of patients with
trophoblastic tumors4 and
together with AFP in patients with testicular and other germ cell
tumors.5
Reagents
Materials provided
• Coated Microplate, 8 x 12 strips, 96 wells, pre-coated with mouse
monoclonal hCG-specific antibodies.
• Calibrators, 6 vials, 1 ml each, ready to use; Concentrations:
0(A), 5(B), 20(C), 50(D), 100(E) and 200(F) mIU/mL.
• Enzyme Conjugate, 1 vial, 11 mL of HRP (horseradish peroxidase)
labeled mouse monoclonal hCG-specific antibodies in Tris-NaCl
buffer containing BSA (bovine serum albumin). Contains 0.1%
ProClin300 preservative.
• Sample Dilute Concentrate, 1 vial, 11 mL of serum diluent
concentrate containing buffer containing 0.1% ProClin300
preservative
• Substrate, 1 vial, 11ml, ready to use, (tetramethylbenzidine)
TMB.
• Stop Solution, 1 vial, 6.0 ml of 1 mol/l sulfuric acid.
• Wash Solution Concentrate, 1 vial, 25 mL (40X concentrated),
PBS-Tween wash solution.
• IFU, 1 copy.
• Plate Lid: 1 piece.
Materials required (but not provided)
• Microplate reader with 450nm and 620nm wavelength absorbent
capability.
• Microplate washer.
• Incubator.
• Plate shaker.
• Micropipettes and multichannel micropipettes delivering 50μl with
a precision of better than 1.5%.
• Absorbent paper.
• Distilled water