When is the pregnancy test paper accurate?

For women who suspect they are pregnant, they can use pregnancy test strips to test at home. This is a very convenient testing method. Generally speaking, its accuracy rate is relatively high, but you must master the test time. The test can be performed 7 to 10 days after the menstruation is delayed. At this time, the concentration of human chorionic gonadotropin in female urine is relatively high, so the test is more accurate.

When is the pregnancy test accurate?

1. Experts say that the best time to use pregnancy test strips is between 7 and 10 days after delayed menstruation. This is mainly because the concentration of human chorionic gonadotropin in the urine of most women reaches its highest value at this time. The test at this time is relatively more accurate.

2. Test strips are the preferred tool for many women to test whether they are pregnant, but many women are not pregnant when they first test, but show pregnancy after testing.

Experts pointed out that the detection principle of pregnancy test paper is to detect the concentration of human chorionic gonadotropin in human urine. Although this hormone will appear in the urine a few days after pregnancy, it is not easy to detect due to its relatively small concentration. It will not become obvious until 10-14 days after pregnancy. When is the most accurate time to use the test paper? In order to ensure the accuracy of the test results, it is best to use the pregnancy test paper to test whether you are pregnant about 10 days after menstruation.

3. When testing, you should also pay attention to using the first urine in the early morning as much as possible to improve the accuracy of the pregnancy test paper. Strictly follow the operation sequence on the test paper to avoid mistakes.

4. In order to confirm the accuracy, it is recommended to go to the hospital for a comprehensive examination so that better measures can be taken to solve the problem.

Precautions when using pregnancy test paper

In order to make the pregnancy test paper test results accurate, pay attention to the following aspects when trying it:

If the pregnancy test paper is stored for too long (more than 1 year) or is not kept properly (such as being exposed to moisture), and is not kept at normal room temperature, it may become invalid and a false negative test result may occur.

If the pregnancy has just begun, or there is a possibility of ectopic pregnancy, the HCG level in the body is generally low. The test sample needs to be left to stand for more than 3 minutes, and must be carefully identified for weak positive results? D? D The color band in the test area only appears faintly.

After 3 months of pregnancy, HCG levels decrease and urine tests may sometimes be negative or weakly positive; a positive result does not mean 100% pregnancy.

Some tumor cells, such as hydatidiform mole, choriocarcinoma, bronchial carcinoma and renal cancer, can also secrete HCG. We have also encountered patients with endometrial hyperplasia who tested positive for HCG.

If women of childbearing age experience amenorrhea or suspect pregnancy, they should not rely solely on a single pregnancy test to determine whether they are pregnant. To be on the safe side, you can test again after 3 days. Of course, the most reliable thing is to go to the hospital for a comprehensive examination in time, especially for those with weak positive results, so that measures can be taken as soon as possible.