How to use early pregnancy test strips correctly? Please pay attention to these key points when using early pregnancy test strips

How to use early pregnancy test strips correctly? Since the introduction of early pregnancy test strips, it has brought great convenience to women, especially those with irregular menstrual cycles. It is indeed much more convenient to know if you are pregnant by using urine instead of going to the hospital. Below, the editor will introduce how to use early pregnancy test strips correctly.

On the seventh day of a woman's pregnancy, a specific hormone can be detected in her urine? Human chorionic gonadotropin (HCG), commonly used in urine pregnancy tests conducted in hospitals, is this hormone. At present, the commercially available early pregnancy test strips quickly detect HCG in urine.

During the test, place the urine in a plastic cup, half a cup is sufficient, and then immerse the paper strip in the urine or let it sit for 1-3 minutes. If a colored band appears in the control area of the test strip (some test strips show red, some test strips show blue), it indicates that pregnancy has not occurred. Conversely, if a clear color band appears in the testing area (or outside the standard line), it indicates that pregnancy has occurred.

Attention should be paid to the use of early pregnancy test strips

In order to ensure the accuracy of the test paper results, the following aspects should be noted during trial use:

If the test paper is stored for a long time (more than 1 year) or improperly stored (such as moisture), and is not properly stored at normal room temperature conditions, it may become invalid and may result in false negative test results.

If pregnancy has just begun or there is a possibility of ectopic pregnancy (ectopic pregnancy), samples with low HCG levels in the body should be left to stand for more than 3 minutes and must be carefully identified for weak positivity? D? The color band in the D detection area only appears faintly.

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

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

Women of childbearing age who experience menopause or suspect pregnancy should not rely solely on an early pregnancy self test to determine whether they are pregnant. For safety reasons, you can retest after 3 days. Of course, the most reliable thing is to go to the hospital for a comprehensive examination in a timely manner, especially for weakly positive individuals, in order to take measures as soon as possible.

Efficient use of early pregnancy test strips

How to improve the accuracy of early pregnancy test strips? Once a woman becomes pregnant, a specific hormone, human chorionic gonadotropin, can be quickly detected in her urine using an early pregnancy test strip to determine pregnancy. This type of detection has the advantages of fast, convenient, sensitive, and high specificity, but it should not be taken lightly, as self testing with early pregnancy test strips is necessary. If you do not pay attention to some unexpected situations, there may be false negatives or false positives. So, how can we improve the accuracy of early pregnancy test strips for measuring pregnancy?

1. Pay attention to the production date on the packaging box and do not use expired early pregnancy test strips.

2. Before conducting the self-test, carefully read the instructions and follow them carefully.

3. Conducting early pregnancy self testing at night may affect the accuracy to some extent, while using morning urine will yield more accurate results.

4. Many early pregnancy test strips indicate that women can undergo an early pregnancy self test after missing 1-2 days of normal menstrual cycle. If the self test result is negative and there is still a period after one week, another self test should be conducted.

5. If pregnancy is just beginning, or there is ectopic pregnancy such as ectopic pregnancy, the urine tested should be left to stand for at least 3 minutes (usually only 1 minute), and carefully distinguish whether there is a weak positive, that is, the color of the test area is lighter than the color of the control area, or only faintly appears.

6. Pay attention to positive self-test results caused by non pregnancy factors, such as blood in the urine, endometrial hyperplasia, ovarian tumors, previous pregnancy, expired miscarriage, or incomplete miscarriage.

7. Avoid diluting urine. If drinking too much water dilutes urine, it may lead to false negative results.

8. Conducting experiments in the morning and evening may have a certain impact on the results. The urine in the morning generally has the highest HCG value, so many instructions recommend testing when waking up in the morning, but this is not absolute.

9. Pay attention to the length of the urine immersion test paper during testing. Sometimes the length of the urine immersion test strip may be too long, making it difficult to determine the test results. 10. In cases of pregnancy, the test results can be used to determine whether pregnancy has occurred. Because HCG can remain positive for a long period of time after termination of pregnancy (after delivery, natural abortion, and induced abortion).

It should be noted that using early pregnancy test strips for pregnancy self testing can only be used as a preliminary test and cannot be considered as the final test result. A comprehensive and specific examination at the hospital is the most reliable and reassuring [1].

Reasons for Mistesting in Folding and Editing this Paragraph

1. The time of detection. HCG usually appears in the urine a few days after the zygote is implanted, and it can be detected only when it reaches a certain amount. Therefore, for women with normal menstruation, it is necessary to delay menstruation before HCG can be detected in their urine. Women with long menstrual cycles or abnormal ovulation may only be detected after 4044 days of menopause.

2. Urine dilution. If drinking too much water dilutes urine, it may lead to false negative results.

3. Conducting experiments in the morning and evening may have a certain impact on the results. The urine in the morning generally has the highest HCG value, so many instructions recommend testing when waking up in the morning, but this is not absolute.

4. Pay attention to the length of the urine immersion test paper during testing. Sometimes the length of the urine immersion test strip may be too long, making it difficult to determine the test results.

5. Do not rely on the test results to determine pregnancy if you have had a recent pregnancy. Because HCG can remain positive for a long period of time after termination of pregnancy (after delivery, natural abortion, and induced abortion).

6. Some diseases and drugs may cause false positive results. Some tumor cells, such as hydatidiform mole, choriocarcinoma, bronchial cancer, and kidney cancer, can also secrete HCG.

7. Do not use expired test strips. Because chemical reagents lose their effectiveness over time, it is important to pay attention to the production date when purchasing.

8. Do not use test strips that are already damp.

9. To obtain the correct results, it is best to conduct an early pregnancy test again when menstruation is delayed by two weeks. If the test result is negative and the menstrual cycle is still coming after 1 week, it should be done again. The test results may not be accurate in cases of recent pregnancy, as HCG can continue to be positive for a long period of time after termination of pregnancy (after delivery, natural abortion, and artificial abortion). Some diseases and drugs may cause false positive test results, such as blood in the urine or taking some fertility drugs. Some tumor cells, such as mole, choriocarcinoma, bronchial cancer, and kidney cancer, can also promote the secretion of HCG in the body.

If the self test result is negative and your menstrual cycle is still coming after one week, you should take another self test. If it's not positive, it's best to see a doctor. Believe in your own body. If you experience various symptoms of pregnancy, regardless of the self-test results, you should consider that the principle of early pregnancy test strips is only preliminary testing, and there may be errors when using early pregnancy test strips. The best method is to go to the hospital for HCG blood test, HCG urine test, and B-ultrasound examination. If you are not ready to welcome the baby, it is necessary to detect early signs of pregnancy and determine whether you are pregnant as soon as possible for later miscarriage surgery.