Are c and t negative and positive respectively?

C and T on COVID-19 antigen kit represent control line and detection line respectively. The other letter is S, which is the sample collection area. The letters C and T on the antigen kit definitely don't mean negative and positive, they are control line and detection line respectively. The control line already exists. When the sample enters the test paper, the test line will be newly displayed, and then after waiting for a few minutes, the control line will also be displayed, so that you can see whether it is positive at the right time. If it is positive, there must be two red lines. If it is negative, there is only one red line.

Of course, antigen detection requires sampling, and it takes about 15 minutes to observe. At this time, if both C and T have red lines, no matter what color, they are all positive patients. But if there is a red line that is negative, don't worry too much. Antigen detection is a relatively rapid detection method. Can detect whether people are infected at present, if the symptoms persist for a period of time, fever symptoms, then antigen detection is a relatively fast detection method to understand the situation. Of course, if you are uneasy about antigen testing, you can do nucleic acid testing, which is definitely more accurate than antigen testing.

Generally, when you have a fever, cough and sore throat in the early stage, you don't have to go to the hospital for nucleic acid testing first. If you are too crowded, you are likely to be infected with positive conditions. At this time, you can buy an antigen formula and join the test. The operation is relatively simple. After taking the sample, you can see the results in 25 minutes. During this period, you must pay more attention to drinking water, and eat more food which is relatively high in protein according to your physical condition, so as to increase nutrition appropriately. If you really can't eat, you should eat less and eat liquid food properly, which can relieve discomfort.