The surge of covid-19 has seriously affected our life and production.
With the efforts of most scientific researchers, the test of this virus came out.
Collection methods of common virological test specimens.
Nasal Swab Virus Sampling Kits
1. Draw 5 ml of blood for serological examination without anticoagulation
2. Extract cerebrospinal fluid through an aseptic procedure, place it in a sterile test tube, and immediately send it for examination in an ice bath.
3. Take a cervical or vaginal swab to take the secretions from the lesion site.
If there is no lesion site, clean the mucus of the cervical mouth, stick the swab about 1 cm into the cervix and hold it for more than 5 seconds to take it out. And put the swab in the transport solution on the ice at 4 °C.
4. Fecal specimens Take 2g~4g of stool specimens in a sterile container, add 8ml~10ml of transport fluid, and send them for inspection immediately.
5. Gargle solution: The patient can get it by gagling with sterile normal saline several times. After mixing the same amount with the transport solution, send it for inspection immediately.
6. Throat swab: Use a tongue depressor to fully expose the throat to avoid saliva contamination. Use a swabened moist with normal saline to collect specimens on the surface of the throat, and place them in transport fluid for inspection.
7. Nasopharyngeal swab: Take nasopharyngeal secretions for bacterial culture and drug sensitivity test.
7. Urethral swabs and urine specimens. The tester inserts the urethral swab 4 cm into the urethra and rotates it gently 2 to 3 times to obtain more epithelial cells. Then take it out and send it to the transport fluid for inspection.
The classification of new coronavirus nucleic acid samples includes nasopharyngeal swabs, oropharyngeal swabs and anal swabs. Different specimens use different methods for specimen collection.
What is a Specimen Collection Kit?
Viral Transport Kit: for collecting, handling, and transporting specimens suspected of VIRUS.
Generally equipped with a disposable flocking swab. From the appearance point of view, the flocking swab is white and soft. Using this soft brush during the sampling process will make the user feel no foreign body, and it is suitable for sampling in different parts. people.
Virus sampling tube: When collecting samples, routine samples could not be detected by PCR immediately. It is generally necessary to transport the swab sample with the specimen. The virus itself dissolves rapidly in vitro, affecting subsequent experiments. For transport, viral transport medium must be added.
What is the Specimen Collection Kit used for?
The nasopharyngeal swabbing is generally the preferred method of specimen collection for COVID-19 testing.
1. Disposable virus sampling tube is used for monitoring and sampling infectious pathogenic microorganisms in the disease control part and clinical part. Suitable for sampling influenza virus (common influenza, highly pathogenic avian influenza, H1N1 influenza virus, etc.). Hand, foot and mouth disease virus and other types of viruses.
It can also be used for sampling other respiratory diseases such as Mycoplasma and Chlamydia. COVID-19.
2. For transporting nasopharyngeal swab samples or site-specific scheduled samples from the sampling point to a testing laboratory for extraction and testing by polymerase chain reaction.
3. For the preservation of nasopharyngeal swab samples or samples arranged at specific sites for necessary cell culture.
Swab in specimen collection
1. Swabs with polyester fibre, polyester or rayon head and plastic or aluminium handle: suitable for the collection of virological test specimens. The collection of virological test specimens should not use swabs with wooden handles.
2. Cotton swabs: It is suitable for the collection of vaginal, cervical and urethral specimens for the mycoplasma test. It is not suitable for the collection of bacteria (especially fastidious bacteria) and chlamydia test specimens.
3. Polyester swabs and nylon swabs: suitable for a sampling of virus and bacterial specimens.
4. Flocked swab: It is made of nylon fiber through proprietary spray technology, and is suitable for respiratory virus sampling and fungal culture specimen sampling.
5. Calcium alginate swab: suitable for the collection of nasopharyngeal swabs for Chlamydia and Bordetella pertussis.
However, it is not suitable for the sampling of lipid-enveloped virus and cell culture. It is not suitable for the sampling of Neisseria gonorrhoeae and Ureaplasma urealyticum.