The hCG hormone is the hormone detected in pregnancy tests. Specifically, these tests detect the beta subunit of hCG, which is why pregnancy tests are commonly referred to as "the beta". In addition, quantitative determination of the hCG hormone can give
Decline of serum beta-hCG and spontaneuos abortion: Defining the normal curve. Fertil Steril. 2003;80(Suppl 3):87.↵ Barnhart KT , Sammel MD , Chung K , Zhou L , Hummel AC , Guo W . Decline of serum human chorionic gonadotropin and spontaneous complete abortion: defining the normal ...
In early pregnancy, beta human chorionic gonadotropin (βhCG) secreted by syncytiotrophoblasts maintains the corpus luteum, which allows it to continue secreting progesterone until the placenta takes over its function at 7 to 9 weeks of gestation. Progesterone causes secretory changes in the ...
Another benefit of beta hCG testing is timing. Because hCG can be detected in blood much sooner than it can be detected in urine, beta hCG tests can be taken as early as one week after your estimated conception date. This type of testing is particularly beneficial for couples with at-risk...
This may further be supported by serial nonascending serum beta hCG levels during this week (Figs 4A to C). Intrauterine hematoma in early pregnancy: Intrauterine hematomas can be, according to their location, divided into retroplacental, subchorionic, in fundal or cervical. Cervical hematomas ...
BACKGROUND:Human chorionic gonadotropin (hCG) is produced by the trophoblast early in pregnancy and peaks at a level of approximately 100,000 IU/liter around the ninth week of gestation. Abnormally high levels are usually noted in association with multiple gestation, molar gestation, and specific ...
Markedly elevated beta-hCG levels in a normal singleton gestation with hyperreactio luteinalis. Obstet Gynecol 2002;99:958-61.BIDUS MA, RIES A, MAGANN EF, MARTIN JN. Markedly elevated beta-hCG levels in a normal singleton gestation with hyperreactio luteinalis. Obstet Gy- necol 2002; 99: ...
Odds of achieving pregnancy ('cases') in patients with elevated/high-normal TSH ('exposure') on day of beta-hCG determined by Odds Ratio, with beta-hCG negative patients serving as 'controls'. First IVF cycle data analysed/presented. PARTICIPANTS/MATERIALS, SETTING, METHODS. Study performed at...
There was no significant association between the FMF angle and fetal NT or serum PAPP-A or beta-hCG. In the volumes with paired measurements, the difference between two measurements by the same or two sonographers was < 5% in 95% of the cases. In the cases with paired 3D and 2D ...
No significant differences were found in the medians of gestational age-specific maternal serum free beta-hCG and AFP in normal twin pregnancy comparing with twice those in model controls with the exception of the medians for free beta-hCG during the 16th gestational week (P = 0.012). ...