Corona self-test: These 7 errors cause an incorrect result
Corona rapid tests for at home, also known as self-tests, usually work when the viral load is high. According to the Paul Ehrlich Institute, around 80 percent of the tests approved in Germany detect a corona infection – provided they are used correctly and carried out consistently. It is important to follow the manufacturer’s instructions exactly and to implement them conscientiously. These 7 errors in the Corona self-test can lead to incorrect results!
1. Wrong temperature when storing and testing
Like medicines  and other medical products, corona self-tests should be stored neither too cold nor too warm. However, the room temperature is not only relevant when storing the quick tests, the ambient temperature should also be at least 15 degrees and a maximum of 25 to 30 degrees during the actual testing. Strong temperature fluctuations during storage can also have a negative impact on the reliability of the self-tests.
2. The timing of the quick test
Self-tests can be carried out at any time of the day, but are particularly recommended in the morning, when the viral load is highest.
Incidentally, the time at which the reading is taken is also crucial: Pay close attention to the instructions on the packaging. If a second line forms well after the specified period has expired, this usually does not indicate a positive test result.
3. Impurities falsify the test result
If samples are taken from the mouth, you should not eat or drink for at least 30 minutes before the test. Initial studies show that drinks, medicines or food can falsify the test result. For example, soft drinks could  lead to incorrect results in studies, but coffee , carbonated drinks or fruit juices can also falsify the result. In addition, brushing your teeth  or smoking before the test is not recommended. Chewing gum is also  taboo at least half an hour before the self-test.
No nasal spray should be used before swabs are taken from the nasal area. Most manufacturers also advise against blowing your nose before using the self-tests, while others recommend it to remove particles such as dust and pollen from the nose. It is best to follow the manufacturer’s instructions.
When performing the self-test, also make sure your hands and surface are clean and do not touch the front part of the test stick with your fingers to avoid contamination.
