During pregnancy, every woman should be tested for human chorionic gonadotropin. Before you go to the clinic, it is necessary to deal with how to take HCG correctly.
In some cases, a
In case of delay or absence of critical days of hCG surrenders to determine early pregnancy. The study also allows you to:
- to determine the gestational age (not earlier than the fifth day after the alleged conception);
- monitor the child's gestation diagnosed in women of different pathological conditions;
- identify impaired fetal growth;
- diagnose fetal malignancies;
- detect ectopic or missed abortion.
Donating blood hCG is recommended when there are multiple embryos, congenital or hereditary diseases in close people suspected exposure to radiation or low-quality termination of pregnancy, a high probability of spontaneous miscarriage.
Refusal of delivery of the analysis may lead to the fact that doctors miss the symptoms of preeclampsia - toxicosis, be severe. It is fraught with the development of eclampsia, and even death.
How often should I take
To determine the pregnancy test for HCG is conducted at a noticeable delay menstruation. Blood can not give a mid-cycle (after release of an egg from the ovary) or within a few days after conception alleged, t. K. In this case the results are incorrect. In most cases the analysis was performed at a delay of menstruation 5-9 days, when the fertilized egg is attached to the uterus. Prior to this it within 1-2 weeks passes through the fallopian tubes.
As for how often to take the test for hCG, there is no limits. Blood can be taken at any time during pregnancy when indicated, or lack thereof. For the first time the hormone levels determine when a woman suspects that she is pregnant. Second biochemical screening is carried out from 9 to 13 week, the third - on the age of 16-18 weeks.
Say, how often to take the hCG pregnancy, the doctor can only. It takes into account the health status of the patient and her family, medical history, the results of previously conducted tests and other factors. Regular research allows timely identification of pathological conditions and immediately start treatment.
If doctors want to keep track of the level of the hormone over time, the patient hands over analyzes 1 every 5-6 days.
when should I take
Donate blood for hCG is allowed at any time of the day (in Vol. H. night), but the doctors advised to come to the lab early in the morning. This is due to the fact that the analysis is done on an empty stomach, as well as many other types of studies.
Before the procedure should avoid eating the food, water, juices and other beverages.
Between the delivery of blood and the last meal should take at least 4-6 hours.
To do research on a full stomach is strictly prohibited.
How to prepare
Upon delivery of the hormone hCG preparation for analysis plays an important role. The results to be valid, the woman is important to observe the following rules:
- 2 days before the study is necessary to abandon the consumption of alcohol, fried and fatty foods. Overeating also should not be. Therefore, if the day before you plan to feast, the analysis is better to postpone the surrender.
- Physical and psycho-emotional state of a woman during a blood test should be stable. It is necessary to eliminate the stress and strong emotional arousal, intense exercise. The period during which the rest must be observed, equal to 1-2 days.
- For 4-6 hours prior to analysis do not eat. Doctors recommend to refuse not only from food but also from any beverage. In this case, the results will be more accurate.
- Within 1 hour before delivery of hCG pregnancy should refrain from smoking.
If you do not prepare for the blood test results may be incorrect.
How to donate
The clinic needs to come well in advance. A woman should sit in the corridor of 10-20 minutes to calm down and catch my breath. Any symptoms (weakness, dizziness, nausea) should be reported to the technician. In such cases, the blood is taken in the supine position.
One of the rules on blood donation hCG - expert warning about all the medication. Certain medicines can alter hormone levels in the blood, leading to misinterpretation of test results. The greatest influence various hormones and immunosuppressive (which suppress the immune system) means.
A blood test hCG delivered in special laboratories that have the territory of each clinic. Restaurants often use different methodologies and research units of measurement, so do better in tests in the same place at the same time. In this case the comparison of the results would be.
In artificial insemination and natural conception is dealt equally hCG. Laboratory takes blood from a vein and placed in a centrifuge, which separates the plasma from the cells and to conduct a study with the help of chemicals.
A prerequisite is the use of a disposable syringe.
In most cases, the hormone level is determined for 1-3 days. If you need to get results fast, conducted a rapid test takes about 2 hours.
That may affect the results
The patient should pass hCG analysis and produce results experts involved in the pregnancy. The hormone appears in the plasma for 9-10 days after conception, then quickly starts to grow. After 9-10 weeks, it reaches a maximum level. hormone norm in this period is 20900-291000 mIU / ml.
HCG deviation up or down occurs under certain conditions. Elevated levels of a signal of the presence of the following abnormalities:
- perenashivanie fetus;
- embryo development of various diseases;
- strong toxicosis;
- diabetes mellitus in women.
Increasing levels of the hormone can occur if the patient is taking hormones. If a woman is not pregnant, the high hCG indicates the presence of tumor, poorly had an abortion, taking medication with beta-hormone.
Worry ahead of time is not necessary. Elevated hormone may be an indication that a number of embryos found in the uterus. The more, the more the rise of hCG. The same thing happens during toxicosis. These conditions do not threaten the health of a child or a woman, but you can go to the hospital to save if desired.
Deviation indicators down can indicate the following states:
- ectopic pregnancy;
- placentofetal fetal insufficiency;
- perenashivanie fetus;
- premature aging of the placenta;
- baby lag in physical development;
- risk of miscarriage.
Donate blood on a regular basis of hCG in accordance with the recommendations of the attending physician. This is important for the safety of the expectant mother and the embryo.
