Is the result of the pregnancy test strip accurate?

Correct use of early pregnancy test strips:

To improve the accuracy of early pregnancy test strips, we must grasp the correct use of early pregnancy test strips:

1. Read the instruction manual thoroughly before performing the test. Return the reagent and urine sample to room temperature (20°C to 30°C) before use.

2. Remove the reagent strip from the original packaging foil bag and use it within 1 hour as soon as possible.

3. Insert the reagent strip into the urine specimen in the direction of the arrow. Note: The urine level must not exceed the marking line of the reagent strip.

4. Take at least 5 seconds and take out the observations on a clean flat surface.

5. Wait for the appearance of the magenta band. The test result should be read at 3 minutes. After 10 minutes, the judgement is invalid.

How to determine the results of early pregnancy test paper?

1. Positive (+): Two magenta bands appear. One is in the test area (T) and the other is in the quality control area (C). Indicates that she is pregnant.

2. Negative (-): Only a magenta band appears in the quality control zone (C), and no magenta band appears in the test zone (T). Indicates that she is not pregnant.

3. Invalid: The magenta band does not appear in the quality control area (C), indicating that the process was incorrect or that the reagent strip has been deteriorating.

Note: The color bands of the reagent strip control line and the test line may show color depth due to the amount of hCG in the urine, and the results are judged to be in accordance with the above criteria.

What should you watch out for when using a pregnancy test strip?

1. Early pregnancy test papers purchased by you that are stored for too long (more than one year), or early pregnancy test papers are damp, and they are not stored under normal room temperature conditions (not cold-cold), they may fail, and false positives result. .

2. If the pregnancy has just started, or if there is a possibility of ectopic pregnancy (ectopic pregnancy), the samples with low HCG levels in the body need to stand for more than 3 minutes (usually only 1 minute), and you must carefully identify whether there is a weak positive - - The detection zone only appears faintly.

3. What should I pay attention to when using pregnancy test strips? After 3 months of pregnancy, HCG levels decline, and urine tests sometimes appear negative or weakly positive.

4. In extreme cases, such as hydatidiform mole, choriocarcinoma, HCG levels in the body will be too high, urine testing does not show positive.

5, positive results do not mean 100% pregnancy. Because some tumor cells such as hydatidiform mole, choriocarcinoma, bronchial carcinoma and kidney cancer, also can secrete HCG. We also had positive HCG tests in patients with endometrial hyperplasia.