How to use genetic testing saliva collector
The most convenient way to collect DNA samples for genetic testing is saliva, followed by blood. The most popular method is to collect saliva samples for testing. The advantages are: painless and non-invasive, people have a high acceptance rate, compared with blood collection Saliva collection is more convenient and free, and user acceptance is higher.
First,
Before collecting DNA samples, please refrain from eating, drinking tea, smoking or chewing gum within 30 minutes before collecting saliva DNA samples. Do not tear off the plastic film on the funnel cover. Before spitting out saliva, relax your cheeks and knead gently for 30 seconds to produce saliva. To promote the cell shedding of the oral mucosa, and then spit, saliva DNA sample collection tube Collection method
1. Gently spit the saliva secreted in the oral cavity into the oval collection port of the saliva collector. When collecting saliva, you should try to avoid excessive foam. 2. Collect saliva until the layered interface between the saliva in the collection tube and the upper layer of foam reaches the scale line shown in 2ml. 3. Evenly buckle the cover of the collector containing the preservation solution onto the oval collection opening. There will be a slight click when buckling, and the preservation solution evenly flows into the collection tube, which indicates that the cover has been buckled, otherwise, it needs to be lightly clicked. Gently open the cover of the collector, and then buckle it evenly again until the preservation solution evenly flows into the collection tube. 4. Gently shake the DNA saliva collector to make the cell preservation stabilizing liquid flow into the collection tube more completely. 5. Confirm that the layered interface between the liquid in the collection tube and the upper layer of foam reaches the scale line shown in 4ml. 6. Confirm that the collection is completed without error.
First, the extraction of DNA is through the exfoliated cells contained in saliva, not the saliva itself. So when collecting saliva samples, you should use your tongue to scrape the upper and lower jaw as many times as possible. At the same time, you can use your teeth to scrape your tongue slightly to ensure the number of shed cells. Make sure that you have not eaten, drink, smoke or other behaviors that affect the success rate of sampling in the past 30 minutes. It is recommended that the first thing to do when you wake up in the morning is to sample to ensure the success rate of sampling.
Please be careful not to rinse your mouth with mouthwash before sampling, and it is not recommended to sample after rinsing.
