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During the early weeks of pregnancy, h CG is important in maintaining function of the corpus luteum.
Production of h CG increases steadily during the first trimester (8-10 weeks) of a normal pregnancy, peaking around the 10 week after the last menstrual cycle.
It is important to know that you must use the range supplied by the laboratory that performed your test to evaluate whether your results are "within normal limits." For more information, please read the article Reference Ranges and What They Mean.
Human chorionic gonadotropin (h CG) is a hormone produced by the placenta of a pregnant woman.
They are typically found to the right of your results. Mosby's Diagnostic and Laboratory Test Reference 10th Edition: Mosby, Inc., Saint Louis, MO.
If you do not have your lab report, consult your healthcare provider or the laboratory that performed the test(s) to obtain the reference range.
Laboratory test results are not meaningful by themselves.
Their meaning comes from comparison to reference ranges. Generally, when used correctly, the home test should produce the same result as the urine h CG test done by your health practitioner. Blood testing for h CG is more sensitive than urine h CG testing, so sometimes a blood test will indicate pregnancy when the urine test is negative. Sources Used in Previous Reviews Thomas, Clayton L., Editor (1997). Mosby's Diagnostic and Laboratory Test Reference 5th Edition: Mosby, Inc., Saint Louis, MO. Free Beta-Subunit of Human Chorionic Gonadotropin (Free b-h CG) Enzyme Immunoassay Test Kit. (See First Trimester Down Syndrome Screen or Second Trimester Maternal Serum Screening for more on this.)Preferably, a urine sample is collected first thing in the morning or a blood sample is drawn from a vein in the arm. However, do not drink large amounts of fluid before collecting a urine sample for a pregnancy test. Available online at Devices/Productsand Medical Procedures/In Vitro Diagnostics/Home Use Tests/ucm126067through