How to detect pregnancy with test strips

The development of science and technology has brought a lot of convenience to everyone. It seems that in the past, if expectant mothers wanted to know whether they were pregnant, they had to go to the hospital to find out. Nowadays, you can use pregnancy test strips to roughly know whether you are pregnant. So, how do you use early pregnancy test strips to determine whether you are pregnant?

How to read the early pregnancy test paper

1. Negative: A dark purple line (comparison line C) appears in the test area, indicating that you are not pregnant.

2. Positive type: Two dark purple lines appear in the test area (comparison line C and test line T), indicating pregnancy. The color intensity of the test line at different stages of pregnancy changes with the change of HCG concentration.

3. Invalidation: If no dark purple line appears in the test area or only one dark purple line appears in the test area (test line T line), it means that the test is unsuccessful or the pregnancy test paper is invalid and should be tested again.

How can early pregnancy test strips be misdiagnosed?

1. Inspection time. HCG usually appears in the urine a few days after the embryo implants, and it must reach a certain amount to be detected. Therefore, for women with normal menstruation, HCG can only be detected in the urine after the menstruation is delayed. Women with long menstrual cycles or abnormal ovulation can only be detected after 40-44 days of amenorrhea.

2. Some diseases and treatment drugs may lead to positive results. Some tumor somatic cells, such as hydatidiform mole, choriocarcinoma, bronchial carcinoma and renal cancer, can also metabolize HCG.

3. Do not use expired pregnancy test strips. Since chemicals lose their effectiveness over time, pay attention to the production time when purchasing.

4. Do not use pregnancy test paper that has become damp.

5. When women of childbearing age experience early pregnancy symptoms such as amenorrhea, they cannot use a single pregnancy test to determine whether they are pregnant. The most reliable way is to conduct a comprehensive examination, especially for those with weak positive results, to conduct HCG blood tests, HCG urine tests, and B-ultrasound examinations. Facilitate effective action as soon as possible.

6. After three months of pregnancy, the HCG level will decrease. If you use a pregnancy test strip at this time, it may show a negative result or a weak positive result.

As for pregnancy test strips, expectant mothers should learn how to check them. After all, it is impossible to go to the hospital for examination every time, and the cost will be a bit high. Secondly, it is also necessary to use it according to the correct operating method, otherwise if it causes misdetection, it will make expectant mothers a little disappointed.