For many women, pregnancy is a long-awaited event. The most reliable test that in the early time allows you to determine, a woman is pregnant or not, is the blood test to chorionic gonadotropin. When can I make an analysis on hgch and how is testing?

Overview of Analysis

On the 6-8 day of pregnancy in the blood of the future mother, chorionic gonadotropin - hormone, which is a gestation indicator begins. By this time, a fertilized egg from one cell, which is called the zygote, is converted by crushing in a blastocyst and goes into the uterine cavity. In the uterus of Blastocyst, it is approaching the walls of the organ, in its upper layer, rises are formed, which are attached to the endometry. In this way, the implantation of the embryo in the endometrous layer of the uterus occurs. From this point on, chorion tissue is beginning to produce chorionic gonadotropin.

In addition to the fact that HCG allows you to detect pregnancy, it is possible to monitor the flow of gestation. Too high or too low hormone levels about pregnancy pathology.

All pharmacy express tests are based on the definition of chorionic gonadotropin in the urine. However, in Urin, the hormone content is always lower than in the blood. In addition, different types of tests have different sensitivity, which makes a similar type of verification not the most reliable. The blood test is characterized by higher accuracy of the results. On it, you can unmistakably determine the amount of hCG in the blood.

What time can you determine a pregnancy for analysis?

If the exact date of conception is known, for example, with an extracorporeal fertilization, the blood test on the hCG can be done 7-8 days after fertilization or embryos. By this time, implantation has already occurred, the hormone began secreted, which means the test will show pregnancy. If the date of conception is unknown, then you can check the occurrence of pregnancy using HGG analysis after a delay has arrived.

If there are no special testimony, this trial is made once for gestation. As a rule, a woman is sent for blood surrender when registering in women's consultation. On the 14-15 week, to make sure that there are no pathologies for the development of the fetus, the future mother gives a triple deployed test, which shows not only the level of hCG, but also AFP and Estor.

Additional control over the content of chorionic gonadotropin is necessary in the following cases:

• suspected ectopic pregnancy;
• multiple gestration;
• age older than 35 years;
• a history of hereditary pathologies;
• chronic disintegration of pregnancy.

Preparation for analysis

Does special training need before blood delivery? For 1-2 days, a woman should refuse to eat alcohol. On the day before the test, she needs to reduce the number of cigarettes smoked, if she smokes, and try not to smoke before the blood fence. During the day before the test, you need to abandon hard, oily food and fast food.

Physical activity does not affect the results of the analysis. Woman can continue sports. If a few days before the sample, the patient will feel unreasoning, then the blood delivery is better to postpone until it becomes recover.

Blood is taken in the morning, on an empty stomach. The last meal must be no later than 19-20 o'clock in the evening of the previous day. In the morning, before visiting the laboratory, you should not drink tea or coffee, it is better to do with a glass of water, it should be breakfast after analysis.

Conducting and decoding

For analysis, blood is taken from Vienna. Usually visiting the laboratory is prescribed for morning. A woman can hand over blood in the state clinic or contact the private clinic.

The results obtained are checked with a table of normal hCG. The content of the hormone is rapidly increasing from the first weeks of pregnancy, in the early deadlines, the level is doubled daily. Starting from 12 weeks, the hormone concentration gradually begins to decrease, stops at 21 weeks and remains almost unchanged until childbirth.

The table indicates normal HCH indicators for weeks:

Too low content speaks of the following pathologies:

• the ectopic gestration at which the fruit egg is attached not in the uterine cavity, but in a phallopyan tube, ovary or peritoneum;
• the threat of miscarriage at the HCG level is 50% below the norm;
• frozen pregnancy or fetal death;
• chronic placental insufficiency;
• delay of intrauterine development;
• true tooling gestation.

Increased level indicates such deviations:

• multiple gestration - the amount of hCG is directly proportional to the amount of fruits;
• chromosomal abnormalities in the fetus, for example, Down syndrome at a lowered RARR-A;
• diabetes mellitus;
• gestosis.

In some cases, blood test shows the content of chorionic gonadotropin, as during pregnancy, but the woman is not pregnant. False-positive results arise with ovarian tumors, bubble drift, chorioncarcinome.

Can a pregnancy identify a general blood test?

When registering in women's consultation, a woman is sent to pass a number of analyzes, among which is a common blood test. UAC shows the content of the following elements:

• erythrocytes - red blood tales carrying oxygen;
• leukocytes - white blood bodies performing a protective function;
• platelets - colorless blood elements involved in coagulation;
• monocytes - a variety of leukocytes, capable of destroying bacteria, dead cells;
• lymphocytes - immune system cells;
• hemoglobin - iron-containing protein contained in red blood cells, due to it is possible to transfer oxygen;
• erythrocyte sedimentation rate.

Indeed, a non-heaven woman and the one that is in the position, these indicators are different. For example, leukocyte levels increases, which is associated with a decrease in immunity in the first trimester and, as a result, the appearance of candidiasis, vaginosis, cystitis, colds. The hemoglobin content drops to 110 g / l due to the rapid spending of iron and folic acid. The amount of erythrocytes also changes and amounts to (3.5-5.6) * 10 V 12 degrees of cells per 1 liter.

Despite the fact that the picture of the general analysis of blood in pregnant woman changes, all changes are only indirect signs of pregnancy. Determine whether a woman is in an interesting position or not, one by one OAC is impossible.

Due to the developed medicine and pharmacology, representatives of the fine sex have many ways to determine the long-awaited pregnancy. In each pharmacy you can buy express tests, which will show after a few minutes, whether the child's conception occurred.

But the most accurate and informative research that helps to identify conception in the early stages is the blood test or hCG. What is such an analysis that it shows and when can I take it?

Detection of hormone pregnancy

The first signs pointing to conception, appear after 13-15 days after the fertilization of the egg. If the monthly cycle is not broken, it should begin menstruation at this time, but during pregnancy there is a delay. As medical practice shows, express tests often show a false result.

That is why, if there is a suspicion of "interesting position", it is wiser to immediately contact the clinic and pass the appropriate analysis. Many girls do not know what is called blood test for pregnancy. In clinics and hospitals, he is called a study on HCG. HCG abbreviation is decrypted as a chorionic hormone.

This specific protein begins to be produced by the tissues of chorion after conception, its level begins to rise by 6-8 days after the fertilization of the egg. Chorionic hormone synthesizes the production of other biological components that help the body maintain pregnancy. It is according to its number you can determine pregnancy.

Protein chorionic hormone contains 2 components: beta and alpha. In the early periods of pregnancy, only an alpha component has a unique composition. Not a pregnant woman has its level does not exceed 5 honey / ml. But if fertilization occurred, its concentration will be enhanced, and it will increase every 2-3 days.

In Moscow, such a study is carried out in almost every clinic. How much decryption is done, depends on the type of institution.

What shows such an analysis

Doctors warn that compared with express analyzes, the study of blood serum is much more informative. The concentration of hCG in the blood exceeds the concentration of hormone in the blood almost 2 times, due to which the definition of pregnancy will be accurate. Depending on the concentration of hCG in the blood of a pregnant woman, the doctor will also be able to assume the time when conception has come.

Turning blood to hCG will have not only at the first weeks of pregnancy, and throughout the entire period of the toddler, since this analysis helps to identify pathology and deviations in the development of the fetus. The first screening is usually held from 11 to 14 week of pregnancy. Also, on this period, the plasma protein of Rarr-A is investigated and a ultrasound study of the fetus is carried out, which allows you to determine chromosomal deviations.

A secondary study is carried out in the period from 16 to 20 week of tooling. Based on the data obtained, it is possible to estimate the probability of genetic deviations from the baby and to appoint further research. If the concentration of the chorionic hormone is rejected from the norm, this may indicate serious problems, up to a frozen or ectopic pregnancy, an increased probability of miscarriage or pathologies in the development of the fetus.

When you can donate blood on hgch

If a woman knows when approximately the conception occurred, visit the laboratory and pass the blood for pregnancy can already after 6-8 days. If the future mother does not know when conception happened, it is possible to make an analysis within a week after a delay. Blood research on hCG is as accurate as possible and cannot give a false result.

This is due to the fact that after the attachment of the germinal egg to the uterine wall, the level of the chorionic hormone rises every 2 days. If the conception occurred, the HCG level is guaranteed to show it. Moreover, in contrast to other studies, the HCG analysis helps to establish the age of the fetus not only in weeks, but also in the days.

Blood fence is carried out only of veins. The procedure takes only a few seconds and is completely safe. To assess the state of the health of the mother and the fetus, as well as to put the highest possible lifetime, the woman will have to pass and other analyzes, among which there is biochemical analysis and a general blood test during pregnancy.

Indications for holding

Analysis on hCG is carried out at the beginning of the first trimester, from the very beginning of menstruation delay. If a woman has no pregnancy suspicion, express tests show a negative result and no changes are observed with well-being, with a trip to the clinic can be closed.

In addition to mandatory research, the HCG analysis can be appointed in such cases:

• suspected presence of ectopic pregnancy;
• suspicion of multiple pregnancy;
• the age of the future mother over 35 years;
• a woman is in the risk risk group with Down syndrome;
• increased risk of miscarriage or frozen pregnancy;
• the woman was subjected to radioactive irradiation.

If these readings are absent, the level of hCG can be found at the 10th week of pregnancy. If the baby tool is properly passed, it is allowed to conduct a later analysis for 15-17 weeks. In this case, the survey is carried out to confirm the absence of pathologies from the fetus. Such a study of blood is called a triple expanded test. With it, you can learn not only the level of chorionic hormone, but also the content of gonadotropin, estriot and afp.

Other blood tests during pregnancy

HCG is usually tested during the first trimester of pregnancy, but can control the indicators and at later timing

General clinical analysis

Along with the identification of the level of HCG, one of the most important during pregnancy is. With the help of it, it is possible to estimate the changes occurring in the body of a woman, and to identify the pathology of the intrauterine formation of the child. Unlike the remaining research of the UAC (total blood test), each trimester is carried out, since it allows to track the development of the fetus.

Changes in blood test and a strong excess of the norm may be a sign of infection or the development of the pathological process. With the help of the UAC, you can identify hidden inflammation, allergies, anemia, and also evaluate how blood changes throughout the entire period of pregnancy.

Norms of indicators:

When contacting the clinic, many women are interested in whether it is possible to determine pregnancy with the AC. Doctors assure that indicators that are determined with this study do not help to identify pregnancy. If you need to confirm or disprove the conception, HCG is appointed

Blood chemistry

Another essential study when carrying a child is a biochemical blood test. The survey helps to appreciate how well the female sex hormones function, can also be identified with it, which vitamins do not have enough future mother's organism. If the babe tooling passes without complications, the biochemical analysis is made 2 times.

The blood is most often held for the 6th week of pregnancy and at week 30. Taking into account the information received, the specialist can identify a common clinical picture and, if necessary, assign appropriate treatment. The main norms of the biochemical analysis of blood:

• total protein. Its content should vary within 63-83 g / l;
• lipids. Permissible values \u200b\u200b- 6.0-6.02 mml / l;
• glucose - 3.5-4 mmol / l;
• alkaline phosphatase - up to 240 units / l;
• urea - 2.5-6.3 mmol / l;
• creatine - 53-97 mmol / l;
• amylase pancreatic. If the value exceeds 50 U / L, it may be a sign of developing pathology.

Regardless of where the study is carried out, biochemistry decoding usually takes no more than 3 days. After this time, the form with the results is issued to a woman in hand.

Analysis on coagulation

Another necessary study when tooling the child is a coagulogram or a coagulation analysis. The study of this type is carried out once in trimester. More frequent conduct is only necessary if there are pathologies. The survey helps to identify the predisposition to bleeding, which will help the specialist to estimate the likelihood of miscarriage and other unwanted complications.

When deciphering the result, attention is paid to such indicators:

• fibrinogen concentrate. The norm of this protein varies in the range of 2.0-4.0 g / l. Closer to childbirth rises to 6.0;
• ACTP. Accountability rate. Norm - 24-35;
• water anticoagulant. In the blood of pregnant women, this component should not be present;
• prothrombin. Norm - 78-143%. If the indicator exceeds the permissible value, it may indicate the disclosure of the placenta.

Additional research

To evaluate the general clinical picture and minimize the risk of pathologies of the fetus, the following additional research is carried out:

• analysis on a blood group. Check blood serum on a group and a rhesus factor is mandatory and carried out even if the woman is already known to this information. If the future mother has a negative rhesus factor, a doctor may assign a study to test the content of rear antibodies;
• genetic analysis. Usually held at 8 week of pregnancy. With the help of genetic analysis, you can identify serious pathology in the fetus, which can be a reason for interrupting pregnancy;
• analysis on Torch research. It helps to identify infectious diseases, such as rubella and herpes.

The results of the analysis are usually ready for 1-2 days

Wherever research was conducted, in the city hospital or private clinic, the decoding of the results usually takes no more than 2 days. After this time, the form with the results is issued to a woman in hand.

Conclusion

When entering a child, a woman often will have to donate blood from Vienna. Doctors warn that each study plays a crucial role and helps objectively assess the state of the future mother, as well as track, as the intrauterine development of the baby occurs.

At the beginning of pregnancy, a woman often doubts the conception. How to dispel your doubts? In this future mother will help the analysis of human chorionic gonadotropin (HCG).

What is hCG, as its number changes during pregnancy

The chorionic gonadotropin of man (HCG) is a hormone appearing in the body about a week after fertilization, it is the HCG that is responsible for the prosperous development of pregnancy, confirms its presence.

After the connection of the male and female cells, an embryo is formed, surrounded by a protective germinal sheath - chorion. Chorion's Villina is just responsible for the production of hCG, but it should be borne in mind that the low level of HCG is determined by both non-remote women, as well as in men (it is produced by a pituitary gland and normally should not exceed 5 honey / ml). The described hormone consists of two subunits: α and β. When determining pregnancy, only the β-subunit is taken into account. A sharp increase in β-hCG may indicate a pregnancy of a woman.

Increasing the level of hCG in the early pregnancy of pregnancy is the main sign of what has happened miracle

The concentration of hCG in the blood during pregnancy doubles every two days, in the urine hormone falls later, so the definition of pregnancy on blood test is considered the most reliable.

If the result is from 5 to 25 honey / ml, it is better to recall the analysis in two days and see: whether the result doubled. In doubtful cases, immediately refer to the doctor.

How is the analysis on hCG to determine pregnancy

To find out if there is an increase in chorionic gonadotropin, you can arrange a check using pharmacy tests for pregnancy or pass the blood test.

Most pregnancy tests can determine its presence from the first day of delay, and some highly sensitive - even earlier

Pregnancy tests

Most often a woman, feeling the onset of pregnancy, makes a test for hCG at home. Pregnancy tests are available in any pharmacy, usually they show the correct result from the first day of the delay. Pregnancy tests are different:

• test strips;
• tablet;
• inkjet;
• electronic.

They differ in price, convenience of use and sensitivity. For example, the highly sensitive express tests of ClearBlue Plus, determine the increased hCG in five days before the delay.

On tests for determining pregnancy there are prompts that further simplify their use

It is best to test for pregnancy in the morning during the first visit to the toilet, since in the morning urine the concentration of hCG will be higher. Analysis make it easy - you just need to follow the instructions. For example, test strips to determine pregnancy are used as follows:

1. The test strip is lowered to a certain level (indicated on the strip) to the container filled with urine, for 15 seconds.
2. After that, pull the strip and place it on the dry surface.
3. The result can be estimated after 3-5 minutes (but not later than 10).
4. Two strips denote a positive result, one - negative.

If the second strip (test) is visible in odor, the result is still considered positive

To the tablet tests, urine should be applied by a pipette, and the jet is substituted under the stream of urine to a certain amount of time specified in the instructions. In these types of tests, the result is also rated by the number of strips.

I almost always used a pregnancy test called "Frautest", the strips were manifested immediately. The result was always faithful, despite the time of its holding (for example, I saw the positive result of the second pregnancy late in the evening on the first day of the delay).

Laboratory blood test

Blood analysis on hCG is the earliest marker of pregnancy.

It is also important to determine the correctness of the development of the fetus, so doctors are prescribed to pass blood on beta-hCG before carrying out prenatal screening - on the 11th and 3th week and 19-20.

HCG analysis in early pregnancy woman can pass and herself, without the direction of the gynecologist

For this, the pregnant woman is taken by the venous blood from the morning on an empty stomach. For the correct result, it is desirable to comply with some more conditions:

• refrain for a day from smoking and alcohol, roasted and oily food;
• avoid physical exertion, sports training;
• prevent a doctor about the reception of drugs;
• try to eliminate stress, emotional overexcitation.

Video: How to pass the blood test on hgch

HCH standards for weeks of pregnancy

To confirm pregnancy, blood test can be spent on the 7-10th day after conception. In the first week, the level of hCG doubles every two days, reaching a peak by the 10-11th week. It is under the control of hCG a yellow body produces estrogens and progesterone. After the 11th week, the level of gonadotropin is usually reduced, since in the yellow body there is no need (the placenta itself is capable of producing pregnancy hormones in the right quantities).

In terms of hCG, you can roughly define the term of pregnancy.

To compare the result of hCG with the level of norms there are special tables.

Table: HCG standards for weeks of pregnancy

Advantages and disadvantages of the method of determining pregnancy in the level of hCG

Blood analysis on hCG is one of the most reliable pregnancy indicators. Its undoubted advantages can be attributed to:

• lack of special training;
• diagnosing pregnancy in early terms (even before delay).

However, this method also has disadvantages: we are talking about false positive (the level of hormone is high, but there is no pregnancy) and false-negative hCG (with a negative value of the hormone there is pregnancy). Let's consider both of these cases below.

False positive result hgch

Sometimes a woman finds many signs of "interesting position", the blood test on hCG is positive, but there is no pregnancy.

Not always positive analysis on hCG denotes pregnancy

It is important to know that a false positive result is possible at:

• reception of hormonal drugs based on hCG;
• malignant tumors;
• abortion or miscarriage, after which there was less than two weeks.

It is necessary to observe the growth of gonadotropin: if there are no dynamics, you need to look for such an increase. Sometimes it turns out an ectopic or frozen pregnancy.

At the 5th week of pregnancy, the value of hCG was 24457 honey / ml. Since he was close to the lower boundary of the norm, and earlier I was conducted with laparoscopy, the possibility of ectopic pregnancy was 25%. Fortunately, according to the results of the ultrasound, the pregnancy was normal, and the eldest son developed normally.

False negative result hgch

There is also a reverse situation: menstruation does not come, the value of hgch blood is minimal, the test shows one strip, and in the end the woman turns out to be pregnant. This is usually due to the fact that the test was made too early (the embryo has not yet fixed it or just fixed, so the increase in hCG is still slightly).

If the embryo is developing normally, then there is nothing terrible in this uncertainty. However, the danger can be, for example, an ectopic pregnancy.

One of my friend was such a case. She decided that the test strip was defective, and did not repeat the blood test on the HCG. The situation ended sadly. Pregnancy turned out to be ectopic. In the course of emergency operation, one of the pipes had to remove that even more reduced the chances of becoming pregnant.

Pain with ectopic pregnancy is felt in the area of \u200b\u200bthe pelvis, the abdomen or even gives to hand, shoulders and neck

What could affect the low value of hgch? There are several reasons:

1. A test or hCG analysis is too early.
2. Ovulation in the cycle shifted, so fertilization also happened later.
3. The embryo has not yet gained, and the increase in hCG is still insignificant.
4. Emascus or frozen pregnancy, as well as the threat of miscarriage.
5. Hereditary pathologies, deviations of the fetus.

With the proposed pregnancy, you need to pass the blood on hCG twice to confirm or refute its offensive.

Today, the most popular way to independently diagnose pregnancy is to buy in a pharmacy, the mechanism of action of which is based on the analysis of the Woman's urine. However, the sensitivity of the tester is rather low: resorting to the test as a single source of information about a possible "interesting situation", the woman risks being disinforced. Other homegrown methods are frivolous if not to say a dangerous path. The most reliable method in the arsenal of modern medicine is determining the occurrence of pregnancy on the analysis of blood.

The method of determining pregnancy on blood test is based on determining the level of "pregnancy hormone" in the blood of a woman. Special hormone pregnancy is called the chorionic gonadotropin of man (HCG), produced by cells of a special shell of the embryo - chorion. If a chorional tissue is present - there is a pregnancy. This makes the definition of pregnancy in the early terms possible by blood test: after a week after conception, the result of the analysis by the level of hCG will be guaranteed positive. Normally, the level of hCG in the serum of a healthy non-pregnant woman is from 0 to 15 honey / ml.

In addition to determining pregnancy, this analysis is appointed to identify the pathology of the fetus (in the period from the 14th to the 18th week of pregnancy). Make a reliable HCG analysis at any time convenient for you and even urgently you can always in the center of traditional obstetrics and family medicine.

How to pass the blood test on hgch

Traditionally, the definition of pregnancy for blood test is produced on the eighth day after the alleged woman conception, but not earlier than in 3-5 days of menstruation delay. For this morning, an empty stomach, venous blood fence is made. If you are planning to pass the analysis at another time of the day, you need to abandon meals for 4-6 hours before the procedure.

If you take medicinal or hormonal drugs, be sure to influence this informant of your gynecologist or nurse. To clarify the results, the test can be repeated in a few days. More detailed recommendations for the preparation for the analysis will give you the chosen gynecologist of the center.

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A modern express test that is sold at the pharmacy is a cheap, affordable and reliable way to learn about pregnancy. However, there are situations when a woman wants to know the result earlier than her will have a delay or this requires medical testimony. The determination of pregnancy on blood test is the most informative and accurate diagnostic method.

What is the basis of blood test

If the conception occurred, the shell of the fertilized egg stimulates the production of a special hormone - human chorionic gonadotropin. Hormone HCG is also called the "pregnancy hormone". It is it that is defined both in conventional express tests and in biochemical blood test. If fertilization has not happened, hormone indicators will not exceed the norm.

If conventional pharmacy tests allow you to identify a special state of a woman from the first time of the delay, then the analysis on the definition of pregnancy by hormone can be done even on the 6th day after conception, that is, a week earlier. However, for a more reliable result, it is recommended to determine the blood pregnancy at least after 3 days of delay.

HCG indicators in a non-remote woman fluctuate in the range of 0-10 honey / ml. From the first hours of pregnancy, the shell of the fertilized egg begins to produce a hormone and with values \u200b\u200brise at times, reaching a maximum by 12 week.

What is the analysis

The analysis of blood on the definition of pregnancy is made in the following cases:

1. The need for earlier diagnosis of fertilization.
2. Determining the degree of development of the fetus.
3. Timely detection of ectopic or frozen pregnancy.
4. Determination of the probability of miscarriage.

How to pass an analysis

Venous blood is taken to analyze, so it is better to do it in the morning, an empty stomach. If the blood fence is made in the evening, it is recommended to refrain from food eating for 6-8 hours before the procedure. Results may be distorted if the woman parallels some kind of drugs. It is necessary to warn the doctor.

If the analysis is done before the delay occurs, the doctor will compare not only the absolute indicator of the hormone concentration, but also the dynamics of its change. With early diagnosis, the analysis will have to repeat after 3 days. It is recommended to repeated blood intake in the same laboratory.

The analysis is quite simple, it is possible to order it in any particular laboratory and even state clinics. Results are ready after 1-2 days. They must be attributed to the gynecologist so that it makes the right conclusions.

Norms hgch.

The sensitivity of pharmacy express tests begins from 15 honey / ml. If the HCH indicators are lower than this limit, only the test strip of the test will react, and the indicator will show a negative result.

• In the first week of development of the embryo, the hormone level increases several times, and the blood test will help determine not only the fact of increasing, but also the quantitative content of the hormone.
• In the third or fourth week, HCG can reach 1-30 thousand honey / ml.
• The period of two months of the embryo is characterized by extremely high hormone performance. Its concentration can reach 30-200 thousand honey / ml.
• Peaks of concentrations are registered on 11-12 weeks, then the level of hCG gradually decreases.
• In the second trimester, the hormone level is within 20-60 thousand honey / ml.
• In the third trimester, the values \u200b\u200bfall even lower - to 6-10 thousand units. However, 1-2 week before the birth, the hormone level jumps up again.

Such wide ranges of values \u200b\u200bare explained by the individual course of each pregnancy. In addition, each laboratory conducts an analysis based on a specific research method. Therefore, it is important to compare the results obtained not with generally accepted indicators, but with the norms of the laboratory.

Woman is encouraged to wait for menstruation delays, since with early analysis, the CGC concentration may be insignificant. Then the doctor appoints a repeated analysis to get the result in a few days and see the dynamics of the development of the process. With accomplishment of pregnancy, the numbers may differ several times, which will confirm the particular state of the woman.

Determining the pregnancy on the analysis of blood, you can not only learn the joyful news about her offensive, but also to trace how correctly the embryo is developing. For each week of pregnancy there are boundaries of the hormone concentration rate. The deviation from these rules may be a symptom of beginning problems.

Causes of deviation from the norm

Blood research is the only option to determine the exact concentration of hormone and make an outcome of the course of pregnancy. Deviations from the norm are observed in the case of:

1. Complications for pregnancy, for example, toxicosis.
2. Sugar diabetes.
3. Multiple pregnancy.
4. Placental insufficiency.
5. Incorrectly defined period.
6. Fetal pathology.
7. Frozen embryo or ectopic attachment.
8. Premature genera or threat of miscarriage.

Blood test is an easy and fast way to learn about pregnancy. Its advantage is possible to control the course of the process, comparing the quantitative indicators of the hormone with the standards and its change in the dynamics. The HCG level is an important diagnostic criterion for gynecologists in some controversial situations or with complicated pregnancy.