Nasal Swab |nasopharyngeal swab sampling .
People who have done nasal swab testing must be deeply impressed by the taste. The normal length of nasal swab is about 15cm, and it is almost 2 / 3 of the depth when collecting. Does the depth of this direct attack on the soul make your heart question: is our nose so deep?
In fact, the nasal cavity is far from the “superficial” nostrils we see.
Continue to go deep into your nostrils, and you will find that it is suddenly bright and unique.
Schematic diagram of nasopharyngeal sampling
Nucleic acid sampling is an important part of anti epidemic work.
It is very important to standardize the operation of sampling technology. It is necessary to standardize various sampling operations in order to provide a strong guarantee for the accurate report of subsequent nucleic acid detection.
How to correctly carry out nasopharyngeal swab sampling?
Nasopharyngeal swab collection method
Material preparation.
75% alcohol, wet towel, test tube rack, collection tube, hand disinfectant, nasopharyngeal swab, biosafety bag, collection bar code.
Operation preparation.
1.Prepare medical protective mask (N95), face screen / goggles, protective clothing and latex gloves.
2.Check the validity period and tightness of the acquisition tube; the virus preservation solution for discoloration and turbidity; the validity period and packaging of nasopharyngeal swab.
Check the collected information.
1.Ask about recent nasal bleeding, obstruction, trauma, etc.
2.Drive the collection tube on the test tube rack.
3.Hand hygiene.
4.Sampling person: takes the seat, tilts his head back later, and pulls the mask to his lips.
5.Estimated acquisition depth (acquisition depth reference): generally half of the distance from the tip of the nose to the earlobe.
6.The operator stands on the side of the subject, and the swab handle is inserted into one side of the nostril in a direction parallel to the upper jaw.
A sense of resistance indicates that it reaches the nasopharynx; Rotate for one week, stay for 15 seconds, slowly take out the swab and insert it into the specimen preservation solution;
The head of the swab shall not touch hands and other objects, the swab shall be broken, the tail shall be discarded, and the cover of the sampling tube shall be tightened.
7.Hand hygiene.
8.Wipe the tube cover with an alcohol wet towel and conduct hand hygiene again.
9.Put the collection tube into the biosafety bag, seal the bag mouth, and put it into the second biosafety bag in the same way.
Nasal Swab |nasopharyngeal swab sampling
About flocked swab specimens
Nasopharyngeal sampling swabs are composed of nylon short fiber pile head and medical grade ABS plastic rod.
The nylon short fiber acts like a soft brush, which can effectively improve the collection of cellular material;
the capillary movement between the fibers forms a strong hydraulic pressure, thus ingesting the liquid sample;
at the same time, the sample clings to the surface of the swab and is easy to wash off.
Cell medical (Dongguan) Co., Ltd. Sterile flocked swabs collect and elute samples more effectively than any other disposable swabs on the market.
The high-quality fiber and swab physical manufacturing process produce sterile flocking swabs, which is an ideal choice for rapid diagnostic testing.
The rapid release of whole cells and the ability to better collect cells make these swabs the perfect specimen collection for any laboratory or research center.
The ideal collection device must be able to absorb and release samples and maintain their activity.
This is why flocking cotton swabs innovate sample collection equipment.
Sterile flocked swabs collect and retain sample vitality, provide better sample yield, and allow rapid release of samples into liquid media.
Attention
1.The insertion direction of the swab is perpendicular to the face of the subject, not along the nostril.
2.When there is resistance when the swab enters, it shall retreat slightly. Under the condition that the subject tolerates it, readjust the angle before continuing to insert, and do not insert violently.