Does the blood test need an empty stomach?
Does the blood test need an empty stomach? Blood tests for pregnancy do not require fasting. Blood test is one of the methods of pregnancy test, mainly to diagnose whether you are pregnant through HCG in blood. This method has high accuracy. It won't take long to draw blood for pregnancy test, about two or three minutes. However, the premise is that female friends must also choose the time of pregnancy test before doing blood test. Generally speaking, the accuracy of blood pregnancy test is very high. Zhang Yurong, deputy director of the Department of Gynecology, Guangdong Second Hospital of Traditional Chinese Medicine, also said that the blood pregnancy test is more accurate and can be performed without fasting.
At present, blood sampling pregnancy test is the earliest method to determine whether you are pregnant after having sex with the same sex. The principle of pregnancy test is to determine whether you are pregnant or not by quantitatively detecting the content of human chorionic gonadotropin in blood. Generally speaking, you can have a blood test and get pregnant after 10- 14 days. If the pregnancy test is positive, you are pregnant. On the contrary, if the blood test results are negative, you are not pregnant.
Make full preparations before blood test and pregnancy test.
Generally speaking, if the test paper for early pregnancy is positive, you can go to the hospital for a blood test to confirm pregnancy. However, the deficiency of blood test in beauty is that it can only confirm pregnancy but not ectopic pregnancy, but this deficiency can be made up by doing B-ultrasound examination.
Matters needing attention in blood collection and pregnancy test
There are many methods with pregnancy test function in life, but blood test is more accurate, so it is more popular with women. But you must know some precautions before blood test, otherwise it is likely to affect the accuracy of the results to a great extent.
1, menstrual condition
Many women have irregular menstrual cycles. At this time, it is more important to judge whether you are pregnant by blood tests, especially for some women who have stopped menstruating for more than a week. Only by taking blood can we judge whether they are pregnant more scientifically. For some women with early or late menstruation, early pregnancy examination should also be carried out one week after menopause to avoid some adverse environment and factors endangering the normal growth and development of embryos.
At the same time, we should also pay attention to it before the prenatal check-up, preferably in the morning, and try to avoid eating some foods that are not easy to dress up before the prenatal check-up. But drinking water doesn't matter. Drinking some water properly has no effect on the test results.
2. Physical examination
Experts remind that if you want to judge whether you are pregnant through blood test, it is recommended to avoid eating and drinking as much as possible before the test. Especially drinking some drinks with high sugar content will seriously affect the test results and even lead to wrong results. Moreover, the first day's exam has no effect on other physical examinations you will have the next day, so you don't need to worry about guidance, but you must pay attention to personal hygiene before the exam.
At the same time, we should pay special attention to the blood pregnancy test, that is, we should try our best to relax, especially some women who are afraid of pain and needles, and we should pay more attention to making certain preparations. Excessive emotional tension is not only not conducive to the smooth blood drawing, but also affects the test results.
3, check the blood hcg
Under normal circumstances, hcg is the main blood test for pregnancy, and you can judge whether you are pregnant or not through blood analysis and testing. Therefore, experts remind women who want to do this kind of examination to have an empty stomach in the morning before the examination and never drink water or eat. Otherwise, it will lead to the decrease and dilution of progesterone in the blood, which will lead to wrong test results. At the same time, before doing this examination, we should also pay attention to ensuring adequate sleep the night before.
4. Pregnancy symptoms
In fact, we can judge whether you are pregnant by drawing blood, and we can also judge whether you are pregnant by some symptoms in our daily life. It can be said that our body's reaction is the most real. Most women will have morning sickness, nausea, dizziness, fatigue, menopause and other symptoms in the early stage of pregnancy, so women with these symptoms can basically confirm that they are pregnant, so they must be prepared to be mothers as soon as possible.
How long does it take to test pregnancy and draw blood?
Generally speaking, go to the hospital for a blood test, and it will take two hours to get the results. At present, it is an early pregnancy detection method that can detect whether you are pregnant as soon as possible after having sex with women. It can usually detect pregnancy about 10- 14 days after having sex with women. As long as the pregnancy can be initially confirmed according to physical symptoms or other pregnancy test methods (delayed menstruation for more than one week, high basal body temperature lasting for more than/0/4 days, strong positive test paper for early pregnancy, vomiting, backache, etc.). ), you can immediately go to the hospital to draw blood for further confirmation.
But blood tests and pregnancy tests are also flawed. This method can only detect pregnancy but can't determine whether it is intrauterine pregnancy. Therefore, for women with positive blood test results, in order to further clarify whether there is intrauterine pregnancy, it is best to do another B-ultrasound examination.
Is the blood test accurate?
Blood test is one of the methods of pregnancy test, mainly to diagnose whether you are pregnant through HCG in blood. The accuracy of this method is relatively accurate. However, the premise is that female friends must also choose the time of pregnancy test before doing blood test. At present, blood sampling pregnancy test is the earliest method to determine whether you are pregnant after having sex with the same sex. The principle of pregnancy test is to determine whether you are pregnant or not by quantitatively detecting the content of human chorionic gonadotropin in blood. Generally speaking, you can have a blood test and get pregnant after 10- 14 days. If the pregnancy test is positive, you are pregnant. On the contrary, if the blood test results are negative, you are not pregnant. The test sheets are 2, 5 and 4.27, all of which are values indicating HCG in blood. Anyone below normal level should consider getting pregnant. Make full preparations before blood test and pregnancy test. Generally speaking, the accuracy of blood test and pregnancy test is very high. You don't need to be on an empty stomach before the examination, but it's best to be on an empty stomach to ensure accuracy. It won't take long to draw blood for pregnancy test, about two or three minutes. However, the deficiency of blood test in beauty is that it can only confirm pregnancy but not ectopic pregnancy, but this deficiency can be made up by doing B-ultrasound examination.
How much is the blood test for pregnancy?
Generally speaking, blood test and pregnancy test are not very expensive, and the charging standards of each hospital are different. The price is around 30 yuan, and there will be deviations in different hospitals, but the difference will not be too big.
Blood test is more accurate for early pregnancy. About 10 days after conception, you can confirm whether you are pregnant by taking blood to detect HCG. Because the human body expresses HCG in the blood after pregnancy, the sensitivity and accuracy of detecting blood content can be good. Pregnancy test paper is based on HCG content in urine, which is relatively less accurate than blood. If a female friend wants to know if she is pregnant, she can go to the hospital for an examination, and then she can be sure whether she is really pregnant. Blood test and pregnancy test are just one of the inspection methods. If the HCG value after examination is less than 0. 1, that is to say, the HCG value is less than 0. 1, and if it exceeds 5, it is pregnant.
In addition to drawing blood, it is also convenient and accurate to check early pregnancy with B-ultrasound, and the diagnosis can be made in about 5 weeks. B ultrasound can not only diagnose normal pregnancy, but also diagnose ectopic pregnancy.
Only through scientific examination can we know if we are really pregnant. If you are diagnosed with pregnancy, but don't want to have children, it is recommended to make plans as soon as possible, and don't cause unnecessary harm to yourself because of temporary negligence.