The hormone beta hCG is produced by the placenta. In normal pregnancy the levels double every two days. When the level in urine is high enough, the home pregnancy test becomes positive. In ectopic pregnancy, the levels are usually lower and rise more slowly (and your pregnancy may not test positive). A combination of ultrasound findings and blood levels of hCG can make a more accurate and earlier diagnosis allowing more treatment options.

Lola, Utah, USA: Yes, some elevated hCG levels can be due to other factors besides GTD or recurrent trophoblastic disease. Certain hormone fluctuations and proteins in the blood may interfere with blood test results. Both tests should be requested, especially in initial diagnosis of GTD, as well as diagnostic testing for suspected GTD, before any invasive treatment recommendations are pursued. Lola, Utah, USA: GTD is diagnosed and followed by measuring hCG hormone in the blood and urine. See similar questions...

hCG is a polypeptide hormone produced by the human trophoblast in the developing embryo. It is composed of alpha and beta subunits. The alpha subunit is essentially identical to the alpha subunits of human pituitary gonadotropins: luteinizing hormone (LH), follicle stimulating hormone (FSH), and thyroid stimulating hormone (TSH). The beta subunits of these hormones differ in their amino acid sequences. As far as its action is concerned, hCG is virtually identical to the pituitary hormone LH. See similar questions...

The earliest that a sensitive blood test can pick up any HCG at all is 5-7 days after ovulation. Your quantitative serum beta test can be reliable about 10-12 days after ovulation, if you have not taken a HCG booster. Extremely sensitive home pregnancy tests might in some cases be reliable as soon as 12 dpo. If you have taken a HCG booster, then you may have a reliable test at 14 days past ovulation. The serum beta is the most reliable test. See similar questions...

Intramuscular injection is generally recommended for hCG. However, a new recombinant form of hCG is available, Ovidrel, which is designed for subcutaneous administration. See similar questions...

Lola, Utah, USA: Testing of hCG levels in the blood is done frequently for GTD. Some physicians will suggest weekly blood testing at first, to confirm regression of the trophoblastic tumor. After remission is achieved, hCG levels are monitored closely, generally with a weekly test for the first month, bi-weekly testing for the second and third months, and then every three months. See similar questions...

The term "Beta Reader" originated in computer software. "Beta Testers" and "Beta Readers" were those individuals who reviewed software before its release, to check for bugs, critique ease of use, and basically test it to make sure it's something that should be loosed upon the world. See similar questions...

An rounded-off average would be about 25 mIU at 10 dpo, 50 at 12 dpo, 100 at 14 dpo. Please consult for charts on hCG levels in early pregnancy. You may be pregnant and just didn't have a high enough level of hCG to trigger the test within the usual time frame; however, it also could be the way that test reacts over time, so you really need to test again either way in order to be sure of the result. Some brands indicate that an "evaporation line" will appear if the test is left to sit. See similar questions...

If you wish to opt out of Beta testing, all you need to do is remove any Beta Software you have been testing. For Windows users, go to your control panel and use the Add/Remove Programs section to remove Beta Software. Select the software you are testing and click on the Add/Remove button. See similar questions...

In all cases of molar pregnancy and the other forms of trophoblast disease the hCG level is important for making the diagnosis and for monitoring treatment. The abbreviation hCG is short for human Chorionic Gonadotrophin, the pregnancy test hormone that is detected in home pregnancy tests. In pregnancy (normal and molar) when the egg is fertilised it starts to make hCG and then as the pregnancy develops the trophoblast/placental cells take over making hCG. See similar questions...

The HCG injection can stay in your body for approx 10-14 days but obviously we all eliminate the drugs from our systems at different rates. As a very basic approximation, 1000iu of pregnyl eliminated from body per day so gives you a rough idea. See similar questions...