Collecting a buccal sample is a simple and non-invasive way of obtaining DNA for genetic testing. Buccal cells are found on the inside of the cheek and can be easily collected using a swab. In this article, we will provide step-by-step instructions for collecting a buccal sample.
Materials needed:– Buccal swabs (these can be obtained from a genetic testing company or purchased online) – Collection tube (provided by the genetic testing company) – Gloves (optional) Instructions:
0 Comments
If you think you might have the flu, testing early can help you determine – and receive – the best course of treatment, including antiviral medications during the window when they can be most effective.
Early flu testing can provide several benefits, including:
The monkeypox virus spreads through close contact with an infected animal or person. Or it can spread when a person handles materials such as blankets that have been in contact with someone who has monkeypox.
The monkeypox virus spreads from person to person through: • Direct contact with rashes, scabs or body fluids of a person with monkeypox. • Extended close contact (more than four hours) with respiratory droplets from an infected person. This includes sexual contact. • Clothes, sheets, blankets or other materials that have been in contact with rashes or body fluids of an infected person. • An infected pregnant person can spread the monkeypox virus to a fetus. Monkeypox spreads from an animal to a person through: • Animal bites or scratches • Wild game that is cooked for food • Products made of infected animals • Direct contact with body fluids or rashes of animals with monkeypox https://www.medicoswab.com/how-does-the-monkeypox-virus-spread/ At-home rapid antigen tests are a key in stopping the spread of COVID-19, but it’s important to do them properly. MEDICO shares a step-by-step guide on how to use a common COVID test at home.
Suitable Crowd 1. Those with obvious symptoms: Those who have obvious respiratory symptoms, such as dry throat, cough, wheezing, accompanied by fever symptoms, and those who have symptoms within 5 days. 2. Isolation observers: including home isolation observation, close contact and sub-close contact, entry isolation observation, closed and controlled areas and personnel in control areas. 3. Others: Those who need antigen self-testing, if they feel unwell, can also conduct self-testing. Operation Steps 1. Preparation for self-test: Wash your hands before opening the package, and carefully check that the package and contents are intact without damage, pollution, dryness and moisture, and can be used within the validity period. 2. Sample collection: After opening, read the instructions carefully, take out the sample extraction tube and test card, and put them in a clean and clean place. (1) People over the age of 14: You can perform nasal swab sampling by yourself. The self-inspector first blows his nose with toilet paper, carefully unpacks the swab, and takes out the plastic end of the disposable swab in his hand to avoid touching the swab head with his hands. Then tilt the head slightly, hold the nasal swab in one hand and stick the tail of the nasal swab into one nostril and enter it, and slowly go back 1-1.5 cm along the bottom of the lower nasal passage. , then repeat the same operation for the other nasal cavity using the same swab. (2) People aged 2-14 years: other adults should take the sampling. When sampling, the operation is the same as above. 3. Antigen detection: Insert the swab into the sample extraction tube, break the swab at the breakpoint, tighten the colored cap and let it stand for 1 minute, unscrew the transparent cap on the top of the extraction tube, and drop 4 drops of sample solution into the sample addition hole , and observe the results after 10-15 minutes. Test Results 1. Positive result: red or purple strips are displayed at both “C” and “T” on the test card, and the color of the strip at “T” can be dark or light, all of which are positive results. 2. Negative results: a red or purple strip is displayed at “C” on the test card, but not at “T”. 3. Invalid result: no strip is displayed at “C” on the test card, regardless of whether it is displayed at “T”. Considerations Self-testers need to strictly follow the instructions. If the test card, extraction tube and swab are accidentally contaminated, they need to replace the test items for self-test in time. Positive results can be used for early triage and rapid management of suspected populations, and can only be used as supplementary evidence for the diagnosis of new coronavirus infection, and cannot be used as a basis for diagnosis. The nucleic acid test results shall prevail. On September 6, 2022, Medico provided medical supplies assistance for Xiushui County in Jiangxi Province to fight against COVID-19 pandemic.
The medical supplies including specimen collection swab, disposable virus samping kit, medical isolation shoe cover and so on. These medical supplies will ensure that frontline healthcare workers are equipped and protected from potential infection and improves Xiushui’s capacity in the screening of potential COVID-19 cases. Hope that the pandemic in Xiushui will end soon and everything will return to normal! The success of the diagnosis of SARS-CoV-2 (2019-nCoV) during the COVID-19 outbreak depends largely on the quality of the specimen and the conditions under which the specimen is transported and stored before being processed in the laboratory.
The RT-qPCR diagnosis of COVID-19 requires nasopharyngeal swab specimens. This sample is then deposited in viral transport medium (VTM). There are two main types of viral transport medium: inactivated and non-inactivated. So how to choose the two transport medium? Inactivated virus transport medium: It is mainly a virus lysis type preservation solution improved by nucleic acid extraction lysis solution. The high concentration of guanidine salt in the sample can effectively inactivate the virus, which can effectively prevent the operator from secondary infection, but it also contains Rnase inhibitor, which can protect the viral nucleic acid from being degraded, so that the subsequent detection by NT-PCR can be performed. . Moreover, it can be stored at room temperature for a relatively long time, which saves the cost of virus sample storage and transportation. Non-inactivated virus transport medium: It is mainly a virus maintenance liquid type preservation solution improved on the basis of the transport medium. It can preserve the activity of the virus in vitro and the integrity of antigens and nucleic acids, protect the viral protein coat from being easily decomposed, and maintain the originality of the virus sample to a large extent. In addition to nucleic acid extraction and detection, this preservation solution can also be used for virus culture, isolation, and antigen detection, etc., but long-term storage after sampling requires strict low temperature. Regardless of whether it is an inactivated type or a non-inactivated type, the virus sampling tube before sampling must be strictly inactivated and sterilized to ensure that there are no other microorganisms in the tube, which may cause the virus to decompose or other influences after sampling and cause false detection. After swab sampling, if a collection tool or preservation solution of poor quality is used, it will affect the subsequent test results and even cause misdiagnosis. Therefore, you must choose a virus sampling tube produced by a professionally qualified manufacturer. After sampling, you need to pay attention to: 1. It is forbidden to directly contact the preservation solution that has placed the virus sample 2. It is forbidden to infiltrate the swab with the preservation solution before sampling 3. The virus sampling tube is a one-time product, which is only used for the sampling, transportation, and preservation of clinical virus samples, and should not be used beyond the intended use. 4. Before using the product, pay attention to the shelf life and whether the packaging is in good condition. 5. When collecting virus samples, professionals should strictly follow the sampling procedures; when samples are tested, they should be operated in a laboratory that meets the safety level. 6. Be sure to mark the sampling information clearly after sampling. 7. Pay attention to the preservation and transportation of specimens. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |