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Qualitative test: 5 to 10 mIU/mL, depending on test ... There is a multilevel urine pregnancy test (MLPT) that measures hCG levels semiquantitatively. The hCG levels ...
Human chorionic gonadotropin is a glycoprotein composed of 237 amino acids with a molecular mass of 36.7 kDa, approximately 14.5kDa αhCG and 22.2kDa βhCG. [4]It is heterodimeric, with an α (alpha) subunit identical to that of luteinizing hormone (LH), follicle-stimulating hormone (FSH), thyroid-stimulating hormone (TSH), and a β (beta) subunit that is unique to hCG.
The hormone hCG is produced at high levels by a pregnant woman's placenta, which is why it is used to depict positive results for these kinds of tests. At the Test Site, the trapped hCG is sandwiched in between a fixed antibody with a dye substrate, resulting in the first line of the pregnancy test appearing.
More specifically, they are qualitative tests that detect whether hCG is present, using a lateral flow setup. [21] The COVID-19 rapid antigen test is also a qualitative, lateral-flow test. [22] Other clinical immunoassays are quantitative; they measure amounts.
The rabbit test became a widely used bioassay (animal-based test) to test for pregnancy. The term "rabbit test" was first recorded in 1949, and was the origin of a common euphemism, "the rabbit died", for a positive pregnancy test. [4] The phrase was, in fact, based on a common misconception about the test.
The hCG test can be used to screen for uterus cancer, or a molar pregnancy, which is when there is abnormal placental growth in the uterus. [9] The hCG test can also be done after a miscarriage to ensure that a molar pregnancy is not present. In men, the hCG test can be used to screen for the presence of testicular cancer. [9]
The cause of hyperemesis gravidarum is not known. However, it is believed to be caused by a rapidly rising blood level of a hormone, human chorionic gonadotropin (HCG), which is released by the placenta. Preeclampsia is a condition that causes high blood pressure during pregnancy. If left untreated, it can be life-threatening. [44]
A NASA illustration of a lateral flow assay. A lateral flow test (LFT), [1] is an assay also known as a lateral flow immunochromatographic test (ICT), or rapid test.It is a simple device intended to detect the presence of a target substance in a liquid sample without the need for specialized and costly equipment.
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