IMPORTANT!
In order to perform the PAPP-A test, it is necessary to purchase the tests at once 2 tests in one order:
The determination of the free subunit of ß-hCG is, in addition to the determination of pregnancy protein A, the recommended biochemical test for pregnant women by the Polish Gynecological Society and the FMF (Fetal Medicine Foundation in London), performed between 11 and 13 weeks of pregnancy.
The PAPP-A test (determination of PAPPA-A and the free subunit of ß-HCG) is for three chromosomal aberrations: Down syndrome, Edwards syndrome and Patau syndrome.
Interpretation should take into account the woman's age and the result of the ultrasound - nuchal translucency assessment, a test also performed rw between the 11th and 13th weeks of pregnancy.
Free ß-HCG subunit is characteristic of the first trimester of pregnancy, its concentration increases from the beginning of pregnancy reaching maximum values at 8-12 weeks of pregnancy and decreasing in the second and third trimesters.
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