To determine the pregnancy, there are special tests. They detect human chorionic gonadotropin (hCG) in urine. This is a quick and convenient method that does not require women of any manipulation. But the most reliable method is the determination of hCG in the 6th week of pregnancy blood test.
How to get tested
Material for research is venous blood. It should take in the morning on an empty stomach. Allowed one last time to eat for 8-10 hours prior to analysis. Before commissioning the analysis need not be nervous, emotional factors can distort the result. It should be remembered that at the level of hCG can affect the reception of certain drugs. Therefore, before the study should inform your doctor about medications that the woman uses. The doctor may cancel some of them for more reliable results.
Blood on the HCG should take no earlier than 4-5 days of menstruation or the test may be false negative, as chorionic gonadotropin can not accumulate in sufficient quantity to determine. For certain result can be sure to receive the sixth week.
To confirm the pregnancy is recommended to repeat the test after 2-3 days.
hormone Norma 6 weeks pregnant
It has long been noted Us pregnancy and hCG levels, since women are not hatching it is present in minimal quantities, and its presence in men may indicate a pathology. In medical practice, a special table, which defines the rules of the hormone at different stages.
The level of human chorionic gonadotropin is measured in "international units per liter" (IU / L). In some laboratories, the result is presented in "millimezhdunarodnyh units per milliliter" (mIU / ml), which leads to confusion. However, these figures relate to one to one, that is, the numbers will be the same.
HCG for 6 weeks gestation baby range is 23100-151000 U / L.
Figure quite variable and may not always conform to this norm.
This should be considered pregnant girl, in order to avoid negative emotions at the sight of deviations. It is necessary to repeat the test after 1-2 days in order to eliminate errors in the conduct of the test.
Why there may be deviation
hormone level changes in individual indicators for each woman. Digression from the norm may have not only a pathological, but also a physiological nature. However, if the girl in the position determined by the low or, conversely, high levels of the hormone, you need to pay attention to this specialist.
Possible causes lowering of the hormone:
- ectopic pregnancy;
- the threat of spontaneous abortion;
- incorrectly delivered term pregnancy;
- missed first trimester fetus;
- growth retardation.
BACKGROUND increase HCG:
- toxicosis;
- false pregnancy;
- multiple pregnancy;
- diabetes;
- taking certain medications.
Raising the level of human chorionic gonadotropin in the absence of pregnancy may indicate the presence of tumor formation. Therefore, women in addition to the analysis of chorionic gonadotropin is necessary to confirm the presence of the fetus other research methods. For example, ultrasound examination by a gynecologist.
There are a number of features in the human chorionic gonadotropin, which may affect the amount of blood:
- There were cases when women revealed immunological incompatibility to hCG. Natural antibodies inhibit the process of synthesis, which leads to early miscarriage.
- No time spent test (previously 4 days delayed menstruation) may not show pregnancy.
- It has been suggested that hCG levels in women who do not bear a child, and men are not equal to zero. But this was not statistically confirmed.
Do not forget about the possible error in the conduct of the test: violation in preparing women to study the wrong blood sampling, the device failure, which determines the level of the hormone. To avoid these problems can repeat the test, it is desirable in other clinic.
HCG levels in the blood - a reliable test to confirm pregnancy, moreover, it can help in the detection of pathology of fetal development. Therefore, this study is widely used in gynecological and obstetric practice.
