Friday, March 29

SALIVA ANTIGEN TEST | How to do a saliva antigen test: this is what you should know


SALIVA ANTIGEN TEST |  How to do a saliva antigen test: this is what you should know

SALIVA ANTIGEN TEST | How to do a saliva antigen test: this is what you should know
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The increase in covid infections and the lightness of symptom from omicron variant is shooting the use of antigen test in the population, both in adults and children. And many parents are opting for saliva antigen test to find out if their children are infected with covid. This is due to the discomfort of sticking a stick (called a swab) up the nose to make a antigen test, especially in children, and the latest studies that indicate that reliability of antigen tests taken in the throat or oral cavity to detect the coronavirus could be higher. That is why it is important to know how to do a saliva antigen test to be sure that the result, negative or positive, is reliable. But, How to do an covid saliva test correctly?

This is how the saliva antigen test is done

The covid saliva test They are ideal for detecting the coronavirus in the elderly and children. First of all, you should know that the ideal for making a saliva antigen test is to take the sample in the morning, fasting, without drinking water or brushing your teeth. when you open the saliva antigen test Usually you find one nozzle, which must be connected to the sample tube, a pipette with the saline solution, a dropper, a plate the same as in the nasal antigen test and a bag to throw away the waste after performing the test. Once we have placed all the elements on a disinfected surface, we must follow these steps to do the saliva antigen test correctly:

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  1. Before perform the covid saliva test it is crucial to sanitize your hands.

  2. The next step will be cough hard five times. This step is the most important, since with this we will create a sputum, that is, a mucus that comes from the lower respiratory tract (known as phlegm).

  3. Immediately after coughing we must spit saliva and sputum into the mouthpiece, until reaching the control line.
  4. Once this is done, we proceed to mix the sample with the saline solution by pouring it into the tube.

  5. To continue, we put the dropper cap on the sample tube and shake this tube about 20 times.

  6. Finally, we put 3 drops of the sample in the hole of the reagent plate, called control S.

This is how the saliva antigen test is interpreted

Once the saliva antigen test must wait 15-20 minutes to read the results:

  • We will know that the covid saliva test performed correctly when the control line C is colored. If this line is not visible and only the T line is colored or none at all, the antigen test is invalid.

  • If after 15 minutes only the control line C is colored, the saliva antigen test is negative.

  • If, instead, you can see the two colored C and T lines the antigen test result is positive.


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