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Hcg Levels At 3 Weeks

Hcg Levels At 3 Weeks

What is an hCG test?

Human chorionic gonadotropin (hCG) is a hormone produced by your placenta once an embryo implants in the uterus.

The purpose of the hormone is to tell your body to continue to produce progesterone, which prevents menstruation from occurring. This protects the endometrial uterine lining and your pregnancy.

A pregnancy test can detect hCG in your urine if your levels are high enough. This is how the test identifies that you are pregnant. But only a blood test can give you a precise numerical hCG reading.

Can Anything Interfere With My HCG Levels?

If you get a positive test result, you are most likely pregnant. False positives are extremely rare. However, there are some conditions that may cause a false positive, such as certain types of cancer and early miscarriage. Some antibodies may also interfere with test results.

These medications are often used in fertility treatments, and your health care provider should advise you on how they may affect a test.

All other medications such as antibiotics, pain relievers, contraception or other hormone medications should not have any effect on a test that measures hCG.

Where does hCG come from?

hCG is produced by the cells which will eventually become the placenta. Long before it is fully formed, the early placental tissue sends a message to the site of the ovarian follicle where the egg was released. This area is known as the corpus luteum and it plays a really important role in influencing the production of oestrogen and progesterone. These hormones are responsible for building up a rich vascular (bloody) lining in the walls of the uterus which will nurture and feed the developing embryo before the placenta has had a chance to form. Without this feedback loop occurring, the chances of the embryo surviving would be pretty slim. Issues relating to the function of the corpus luteum are thought to account some women experiencing fertility problems and early miscarriage.

How will I know what my hCG levels are?

You won’t, unless your healthcare practitioner orders regular tests and advises you what your levels are. If you have been having fertility assistance, are threatening to miscarry or there is doubt over the stability of your pregnancy, you are more likely to have regular hCG testing. But in the main, routine hCG measurements are not routinely done.

Comparing Slow Rising And Normal Rising hCG Levels

Comparing changes in hCG titers with those of established expected curves can help the doctor determine what to do about the pregnancy and how to counsel the patient. However, there are many limitations to the serial assessment of hCG titers and the titers should never be used exclusively to replace clinical judgment based on symptoms or signs.

A normally rising hCG level would usually be a level that rises over 60% over a 48 period, though later on in pregnancy, the rise would be normally slower. Seebert et al reported in 2006 and Morse confirmed this in 2012 that a rise of at least 35% over 48 hours was proposed as the minimal rise consistent with a viable intrauterine pregnancy.

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