Is the picture of the two lines on the pregnancy test stick real?
Pregnancy test sticks are a necessity for modern women. They can perform pregnancy tests at home and get accurate results. But many people have doubts about the authenticity of the picture of the two lines on the pregnancy test stick. This article will elaborate on the four aspects of correct use, interpretation of results, misjudgment rate, and stability of results to help everyone better understand the pregnancy test stick.
Correct usage
It is important to use pregnancy tests correctly as incorrect use can lead to misdiagnosis and inaccurate results. Here’s how to use a pregnancy test stick correctly:
1. Using urine in the afternoon is more accurate. If using in the morning, wait at least 4 hours after urinating in the morning before using.
2. Take out the pregnancy test stick and follow the instructions in the instruction manual.
3. Insert the test stick into the urine, and the exposed part should not exceed the indicated line.
4. Place the test stick on a horizontal surface and wait for about 5 to 10 minutes, then read the result.
Interpretation of results
In early pregnancy, a woman\’s urine contains a hormone called chorionic gonadotropin (HCG). Pregnancy tests can detect the concentration of HCG in urine to confirm pregnancy. The following is an interpretation of common pregnancy test results:
1. A bar: means not pregnant.
2. Two lines: indicates pregnancy. HCG values can be further checked in the hospital to determine the time of pregnancy and the occurrence of ectopic pregnancy.
Misjudgement rate
The false positive rate refers to the probability that the results will be biased due to some reasons when using a pregnancy test stick. Although modern pregnancy test technology has become very sophisticated, misjudgment rates still exist. The main reasons are as follows:
1. The usage method is incorrect.
2. Drug interference, including certain prescription drugs, over-the-counter drugs and traditional Chinese medicine.
3. Malnutrition and disease conditions, such as poor kidney function, liver disease, and tuberculosis.
Stability of results
When used correctly, if the result of the pregnancy test stick is two lines, pregnancy can be confirmed. However, during use, problems with result stability sometimes arise. This is mainly due to the following aspects:
1. It is caused by the different sensitivities of different brands of pregnancy test sticks.
2. The earlier the pregnancy occurs, the less reliable the pregnancy test results will be.
3. Using expired pregnancy test sticks or improperly stored pregnancy test sticks may also lead to unstable results.
To sum up, the picture of the two bars on the pregnancy test stick is real, and we can obtain accurate results by following the correct usage and interpretation of the results. At the same time, the false positive rate and the stability of the results are also issues we need to pay attention to.
Summary
This article introduces the pregnancy test stick in detail from four aspects: correct use method, interpretation of results, misjudgment rate, and result stability, which can help everyone better understand and use pregnancy test sticks. When using, we must read the instructions carefully to ensure the accuracy of the results.
