Human chorionic gonadotropin (hCG) is a glycoprotein hormone produced during pregnancy by placental trophoblastic cells. The primary function of hCG is to maintain the corpus luteum. hCG is detected in the serum of pregnant women six to ten days after conception and its concentration doubles every ...
CONCLUSIONS: Although intact HCG is usually regarded as the main analyte for detection and monitoring of early pregnancy, it can fluctuate markedly during early pregnancy. This variability could affect pregnancy test results based on early pregnancy urine, and may distort estimates of doubling time. ...
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Step 3. Enter the second hCG test date and beta hCG level Before you can calculate any results, you need to enter the results from a second test that was done. An online IVF hCG calculator is based on the assumption that at least one day has passed. In other words, your results could...
Options include testing urine for hCG, serum for heterophile antibodies, and serum hCG by different immunoassays. We report the case of a non-pregnant patient with chronic renal failure who had a positive urine hCG test, an elevated serum hCG level by two different assays but normal by a ...
全自动厂家beckman试剂说明total beta-hcg.pdf,总βHCG 检测步骤 用ACCESS® 免疫分析系统 对人血清的人总βHCG进行定量测定 内容表 原理 2 标本 2 试剂和必须品 3 定标 5 质控 6 步骤 6 结果 6 操作步骤解释 7 操作注意事项 7 参考文献 9 Beckman Instruments, Inc.
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
Sensitivity, specificity, positive and negative predictive values of the test as a predictor of preterm delivery were 41.67%, 80.85%, 62.5%, and 64.41% respectively.Conclusion: A high sensitivity was not attained in this for the cervicovaginal secretions beta- hcg levels in order to predict ...
Measurement of intact hCG and of the alpha subunit of hCG appears to give similar results in blood and urine but not the levels of beta subunit. In the normal second-trimester maternal sera, the level of intact hCG range from 20,000 mIU/ml to 50,000...
Recent analyses of human FSH (hFSH) using antipeptide antibodies, monoclonal antibodies, and chimeric constructions of hCG/hFSH strongly suggest that the C-terminal region, including residues 81-100 of the hFSH beta-subunit, is involved in subunit association as well as hFSH heterodimer binding and...