Select the type of specimen to be collected according to the requirements of the instruction manual of the reagent used.
1. Nasopharyngeal swab.
Sampling personnel with one hand to support the head of the person to be collected, one hand swab sticking nostrils into the bottom of the lower nasal tract along the back of the slowly deep, due to the arc of the nasal tract, can not be too hard to avoid trauma bleeding. When the tip of the swab reaches the posterior wall of the nasopharyngeal cavity, gently rotate it for one week, and then slowly remove the swab and immerse the head of the swab into a sampling container containing preservation solution that is compatible with the test strip.
2. Oropharyngeal swab.
The head of the person to be collected is slightly tilted, the mouth is opened wide, and the "ah" sound is issued, revealing the two sides of the pharyngeal tonsils, the swab is passed over the root of the tongue, and the pharyngeal tonsils on both sides of the person to be collected are slightly hard to wipe back and forth at least 3 times, and then the posterior wall of the pharynx is wiped up and down for at least 3 times, and the head of the swab is immersed in the sample container with preservation fluid accompanying the testing test strips. in the sampling container that accompanies the test strip.
3. Nasal swab.
The subject blows his or her nose with a tissue and tilts his or her head slightly. Sampling personnel gently support the head of the person to be collected, a swab sticking one side of the nostrils into the back along the bottom of the lower nasal passages, slowly backward depth of 1-1.5 centimeters after the sticking of the nasal cavity to rotate at least 4 times, and then use the same swab to the other nasal cavity to repeat the same operation. After slowly removing the swab, the swab head was immersed into the sampling container containing the preservation solution that accompanies the test strip.