Flocked Swab Influenza | Comprehensive Flu Swab Test Guide

Posted on 2022年5月4日2022年5月4日 by Dr. Lee

Flu Flocked Swab Influenza

Influenza refers to the common cold, which is an acute respiratory infectious disease caused by the influenza virus.

It is highly contagious and mainly spreads through droplets, such as coughing and sneezing. Influenza generally occurs in winter and spring.

The current influenza detection method is the rapid influenza antigen detection method, which detects “flux A” and “flu B” antigens.

Laboratory staff collect samples through throat swabs.

In fact, in inspection work, it is important to know the quality of the specimen in order to obtain accurate and reliable results.

Throat swab specimens: Professionals can avoid many false-negative influenza tests caused by improper specimen sampling.

The precautions for flu throat swabs are basically the same as those for nucleic acid detection throat swabs. Because the same part is sampled.

There are two types of flu throat swabs: nasopharyngeal swabs and oropharyngeal swabs.

What precautions should I take when taking a throat swab test for flu?

1. Oropharyngeal swab The collection method of the oropharyngeal swab is to let the subject open his mouth, then use a long pharyngeal swab to wipe the patient’s pharynx, bilateral frontal arches and tonsils, and take out the local secretions. Into the catheter of the throat swab and sent to the laboratory for testing.

2. Nasopharyngeal swabs The collection method of nasopharyngeal swabs is to use sterilized throat swabs to penetrate deep into the nasal cavity of the subject and reach the nasopharynx, and extract secretions and nasopharynx by rotating or wiping.

Epithelial cells put a section with secretions and epithelial cells into a sterile container and then carry out pathogenic detection.

Flu swab material

Swab options for flu testing include flocked swabs, cotton-tipped swabs, rayon tipped swabs, and foam-tipped swabs.

Cotton tip swab:

The original swab tips were all cotton, mainly based on their cleaning power and water absorption. Cotton swabs are very inexpensive and readily available, and are widely used in medical wound management after sterilization with ethylene oxide or autoclaving, as well as in forensic crime scene forensics. In the absence of alternatives, cotton swabs can be used in almost a variety of scenarios.

However, cotton-tipped swabs also have some problems. Due to the low release rate of cotton, natural material for samples, and some of the natural fatty acids in it can damage microorganisms, they are less and less used for sample collection.

Rayon head swab:

Rayon—a synthetic fiber made from wood pulp. Although classified as synthetic fiber, it is essentially a natural material. Compared to cotton, rayon is produced during the process of removing substances that may damage the sample or react with the sample during transportation and handling , so it is generally used for sampling for diagnostic testing.

Polyester Fiber Tip Swabs:

The head material of the polyester fiber swab is made of polyester long fiber winding, which was first introduced into the field of medical testing by DuPont. Polyester fibres are proven for microbial collection, rapid diagnostics, and PCR testing.

Polyester swabs have a high release rate but are more expensive than cotton and rayon swabs.

Foam tip swab:

China Medical Nasal Foam Swab Factory And Manufacturers

Swabs made from medical-grade polyurethane are an excellent material for diagnostics, especially cell sampling. The swab tip of this swab is usually manufactured as a sheet with a surface hole count of 100ppi (holes per inch).

This material has good absorption of hydrophilic substances and poor absorption of hydrophobic substances. Used in some scenarios that require resistance to chemical corrosion. Also used for DNA and microbial sampling.

Flocked Swabs:

Flocking technology was first developed for cosmetic and industrial production. (Learn more)

After the flocking process was introduced into swab production. It replaced the traditional swab head, and the swab head was brought to a new level.

vtm swab

Due to the flocking process and the multi-branched polyester fibre material used, the flocked swabs have a very high absorption and release rate and are proven to be equally efficient for molecular sampling and absorption. Designated by some institutions for nucleic acid sampling as well as some research areas for genomic analysis.

The evolution of swabs is not limited to changes in materials. New demands in the fields of nursing, testing, and scientific research make swabs continue to evolve in multiple dimensions. The swab also not only acts as an applicator, but also acts as some transport medium.

Precautions include the following:

① Do not drink water before the throat swab test, at least 30 minutes in advance, because drinking water before the test will dilute the virus attached to the pharynx, especially drinking hot water will inhibit the activity of the virus.

In order to improve the accuracy of throat swab nucleic acid detection, do not drink water 15 to 30 minutes before the test to ensure that the throat swab has high accuracy.

②. For patients with good throat exposure, it is not recommended to take too long “ah~” sounds to reduce the risk of occupational exposure to the sampler.

③ To prevent vomiting, do not eat within two hours before the throat swab test.

④. Do not smoke, drink, or chew gum within half an hour before the throat swab test.

During the throat flocked swab sampling, the patient may have clinical symptoms such as nausea or nasopharyngeal discomfort, but the symptoms can subside quickly, so the patient should not be nervous and cooperate actively during the examination. At the same time, the subjects should not smoke, drink, or chew gum within half an hour before the sample collection.

If it is because of the throat swab the child, the parents must soothe the child’s emotions, communicate with the child patiently, and try not to move the child’s head as much as possible.

Deep Nasal Swab Virus Respiratory Kit

Posted on 2022年4月30日2022年4月30日 by Dr. Lee

As of April 30, local time, the number of new coronavirus patients in the United States has reached 81.2 million, and the number of deaths due to new coronavirus infection has exceeded 992,000.

As the government ramps up testing for Covid-19, many of us ordinary people are now being tested for Covid-19.

What is Deep Nasal Swab?

Deep Nasal Swab ( nasopharyngeal swab ) is actually a relatively long collection swab, similar to a relatively long sterile swab.

Its main function is to take nasopharyngeal secretions for bacterial culture and drug sensitivity tests.

The source of infection in the nasopharynx and the microorganisms in the nasopharynx were selected and identified by bacterial culture and drug sensitivity test.

Then a drug susceptibility test can be done to determine which drugs are sensitive so that sensitive drugs can be selected for treatment.

So that a better curative effect can be achieved, so the nasopharyngeal swab is actually a flocking swab for collecting nasopharyngeal samples.

China Sterile Flocked Nasopharyngeal Swab GMP Factory and Manufacturers.

Why deep nasal swab for covid?

The Deep Nasal Swab test: to collect cells deep in the nasal cavity because the nostrils by themselves do not provide a sufficiently accurate sample.

The collected fluid samples are sent to a laboratory for PCR testing (polymerase chain reaction), a standard scientific procedure that involves using samples provided by patients to build models of their DNA.

In this system, technicians can look for evidence of the genetic material (RNA) from the new coronavirus, which is wrapped in the patient’s own DNA if they are infected with the virus.

Both Public Health England and the US Centers for Disease Control and Prevention (CDC) prefer to use Deep Nasal Swab because it is so accurate.

Unfortunately, for suspected Covid-19 patients, it can be uncomfortable.

During the operation, the medical staff is gentle and skilled, so there will be no pain.

What is the correct depth and length of nasopharyngeal swab collection?

See the length of the nasal swab? See how deep it goes into your nostrils?

The length of the nasal swab is normally about 15cm, and it should enter about 2/3 of the time when doing the collection.

The nasopharyngeal swabbing is generally the preferred method of specimen collection for COVID-19 testing.

About the distance from the tip of the nose to the earlobe, insert a thin cotton swab into the nostril, from the lower nasal passage to the posterior wall of the nasopharynx, and then turn the front to take a sample. The swab will have a significantly insufficient depth of entry. So the posture must be correct.

When the throat swab enters in the direction of the earlobe if it encounters resistance, it needs to adjust the direction, rotates it slightly, and cannot forcefully enter it.

Otherwise, damaged. Until the bottom of the rhinitis is reached, there is a general sense of resistance against a wall.

When you feel a sense of resistance, you have reached the bottom of the nasopharynx. At this time, you need to keep the nasopharyngeal swab at the bottom of the rhinitis for 10-15 seconds. After fully contacting the secretion, rotate it and pull it out.

Deep Nasal Swab Manufacturer Virus Respiratory Kit

Specifically designed for the collection, transport and preservation of virus-containing samples such as influenza, covid-19, avian influenza, and respiratory viruses such as hand, foot and mouth. 2-8 ℃ can be stored and transported for a short time, long-term storage should be at -80 ℃ or below.

Disposable medical sample collection swab, consisting of a plastic rod with and a flocked fibre tip

VTM (non-inactivated version) and VTM-N (inactivated version) are available for selection.

Ready-to-use tear-off packaging, is convenient and quick, to avoid possible cross-contamination during use.

Equipped with a biosafety sample bag, which is convenient for placing samples and paper documents, the transfer is safe and reliable.

Product number

product description

VTM-CM-0403

VTM-CM-0202

VTM-CM-0203

10ml sample transport tube contains 3ml VTM transport medium, 1 sampling swab, 1 biological specimen bag

5ml sample transport tube contains 2ml VTM transport medium, 1 flocked swab for sampling, 1 biological specimen bag

5ml sample transport tube contains 3ml VTM transport medium, 1 sampling swab, 1 biological specimen bag

Sampling swabs include nasopharyngeal swab (Deep Nasal Swab) or oropharyngeal swabs

Viral Transport Medium Tube Suppliers

Posted on 2022年4月22日2022年4月22日 by Dr. Lee

PCR Swab Test detection disposable virus sampling tube inactivated non-inactivated production supplier

Viral Transport Medium Tube: virus transport tube, which consists of a virus storage tube and virus storage solution.

Virus transport tube: specially designed in combination with subsequent PCR instruments for the rapid detection of viral diseases.

The virus preservation solution ( Viral Transport Medium) is a protective liquid medium added to the virus sampling tube to protect the samples after nasopharyngeal swab sampling.

Includes inactivated viral transport media and non-inactivated viral transport media.

Usually, during nucleic acid detection, nucleic acid PCR cannot be performed directly at the sample collection site.

If the samples collected by flocked swabs need to be transferred for inspection, VTM needs to be added.

Virus detection is different from conventional biochemical detection.

The virus itself is a simple-structured microorganism that must be parasitic in living cells.

After sampling, the virus leaves the host cell. Its protein shell and nucleic acid are quickly degraded in the sampling tube.

So it is impossible to determine whether the initially collected sample contains the virus during nucleic acid detection, which may easily lead to false negatives.

Viral Transport Medium Tube Suppliers

　　The non-inactivated virus preservation solution contains a variety of solution components that are beneficial to the cultivation of virus cells. Which can ensure the integrity of the virus and help increase the survival time and stability of the virus.

　　A virus is a non-cellular life form that consists of nucleic acid molecules and proteins or only proteins, an individual is a small and simple structure that contains only one nucleic acid (DNA or RNA). Without a cellular structure, viruses cannot replicate themselves, but instead, insert genes into host cells and use the latter’s replication system to replicate new viruses. Common infectious diseases are usually RNA viruses, such as influenza virus, HIV virus, H1N1 virus, etc.

After the collection of virus samples, stored and transported in a virus preservation solution to maintain the activity of virus samples and prolong the survival time of viruses in the samples.

Viral Transport Medium with Flocked Swab

　　In addition, we also provide inactivated virus sampling tubes, which can make the sample infective. Thus improving the safety of sample storage and transportation. The product is supplied in bulk liquid medium for further processing, such as into smaller sample tubes.

Inactivated or non-inactivated virus preservation solution. Its basic function is to protect the integrity of virus or viral nucleic acid and ensure the accuracy of viral nucleic acid detection.

Both VTMs have their own advantages.

CellMedical’s virus sampling tubes with a flocked swab to help users collect samples, and there are a variety of swab models to choose from.

　　NOTE: For large-scale nucleic acid testing in non-risk areas during a pandemic, high-volume viral transport media that can hold 5 or 10 swab samples can greatly reduce testing costs.

Characteristics of non-inactivated virus transport media

　　VTM can safely transfer viruses, chlamydia and mycoplasma for further research and analysis.

　　The special formulation ensures optimal sample recovery and the added antibiotic inhibits the contaminating growth of bacteria and fungi.

　　Bovine serum albumin (BSA) acts as a protein stabilizer, but the protein coat of the virus forms a protective film. Making it difficult to decompose and ensuring the integrity of the virus.

　　Hanks’ buffer (HBSS) creates a neutral environment, which helps increase the survival time of the virus and the stability of infection.

　　This product is also equipped with flocked swabs to help users collect samples, and there are a variety of swab models to choose from.

2-3 ML UTM Tube Np Flocked Nasopharyngeal Instruction Swab Test

Applications of Viral Transport Medium Tubes

　　Non-inactivated virus preservation solution: for the preservation and transportation of clinical influenza, avian influenza (such as H7N9). Hand, foot and mouth disease, measles and other viral specimens and mycoplasma, urea. Chlamydia and other living specimens.

　　It is suitable for a variety of applications including classical cell culture methods, and diagnostic tests. And molecular biology techniques (including PCR)

Viral Transport Medium Tube Suppliers Manufacturer

Cell medical (Dongguan) Co., Ltd China Vtm Swab Supplier And Manufacturers

VTM Kit, Viral Transport Media manufacturers, suppliers & exporters in china

The CellMedical production site covers an area of 15,000 square meters, with its own injection moulding production workshop. A thousand-level purification workshop, and more than ten automatic packaging production lines.

We support custom production, OEM and so on, and develop products with customers.

Virus sampling tubes and saliva collection devices can ensure the safety and stability of samples during transport;

Swabs using jet dense nylon fibre technology correspond to soft or brush texture swabs according to different analysis items, which have reached the maximum collection volume.

Disposable injection-moulded swab rods with breaking points and flocking technology. To enhance the adsorption/release of specimens and improves the sensitivity of the analysis.

No sample entrapment, heralding faster and fewer sample transfers.

CellMedical’s sampling flocked swab: made of plastic rod + ABS. Which is harmless to microorganisms and can maximize the collection and release of specimens.

The main products of Cell Medical (Dongguan) Co., Ltd. are disposable virus sampling tubes, virus sampling tube sets, disposable sampling flocking swabs, nasal swabs, throat swabs and other disposable medical equipment consumables.

Sold well at home and abroad. And the superior product quality and high-quality service attitude have won praise from many customers.

COVID-19: Will The Pandemic End in 2022?

Posted on 2022年4月18日2022年4月18日 by Dr. Lee

Only one month after the US lifted the mask order, Philadelphia will usher in a mandatory mask order again.

Beginning April 18, local time, more than 1.6 million Philadelphia residents must wear masks again when entering indoor public places. Philadelphia became the first major U.S. city to impose a mask mandate as cases rose again.

On April 13, the World Health Organization (WHO) New Crown Pandemic Emergency Committee held a meeting. After discussion, it was determined that the new crown pandemic continued to constitute a “public health emergency of international concern”, and countries were advised to prepare for it at any time. Do a good job in vaccination and PCR swab testing.

nasopharyngeal swab test

WHO Director-General Tedros Adhanom Ghebreyesus said: “It’s far from the time to let our guard down.”

According to the latest data from Johns Hopkins University in the United States. The number of confirmed cases of new coronary pneumonia in the world has exceeded 500 million. And the number of deaths has exceeded 6.1 million.

Endorsed by the WHO, in other words, one in 16 people in the world will carry the covid virus.

Since December last year, Omicron has been rampant around the world, with more than 200 million new confirmed cases worldwide in 2022.

500 million, or 5 billion?

At the same time, many experts and even the WHO believe that the number of truly infected people in the world is far more than 500 million, and may even exceed 5 billion.

Not to mention India, Africa and other countries and regions with poor medical conditions, weak testing capabilities, and chaotic management, even in the United States, the CDC has previously acknowledged that the number of infections reported nationwide is estimated to be less than 1/4 of the actual number of infections.

So, can the covid-19 stop this year?

COVID-19: Will The Pandemic End in 2022?

Faced with this question, WHO spokesman Tarik Jasarevic did not respond positively, but reiterated that in order to end the acute phase of the new crown pandemic, scientists have developed an effective epidemic prevention and control response.

Viral Transport Medium With Swab

He also warned: “As the new crown epidemic continues to spread on a large scale around the world, the emergence of more new crown variants and recombinant variants is foreseeable.”

Tedros said that the WHO is currently closely monitoring the development of BA.2, BA.4, BA.5 and other Omicron subtype strains, as well as the recombinant XE formed by the combination of BA.1 and BA.2 evolution.

BA series and X series, how dangerous?

Although the number of new cases around the world has been declining for three consecutive weeks. There are also some countries and regions where new cases are still climbing.

Many Asian countries are experiencing the Omicron wave for the first time. In South Korea, new infections and deaths have continued to climb since February. The country now has the world’s highest daily average of new confirmed cases for a week. According to a Reuters analysis, South Korea currently has an average of more than 182,000 new confirmed cases per day, accounting for a quarter of the world’s newly confirmed cases.

Some European and American countries have experienced a wave of Omicron infection peaks at the beginning of this year, but the epidemic has recently rebounded.

In Europe, the daily increase of confirmed cases in France has shown a slow upward trend, and the seven-day average of newly confirmed cases in Germany has declined, but it is still at a high level. Reuters pointed out that the number of new cases in Europe is still huge, with more than 1 million new confirmed cases almost every two days.

At present, BA.2 is the main circulating strain in many countries, accounting for 94% of all gene sequencing.

While BA.4 and BA.5: Found in South Africa and many European countries.

Experts believe that if more people can be vaccinated and more people have the tools to fight the epidemic, then we can reduce severe cases and further reduce infections, thereby gradually ending the pandemic.

He also emphasized that it is very important to continue swab testing while the pandemic is still ongoing so that cases can be accurately tracked.

CellMedical produce flocked swabs, VTM kits, and virus transport medium, with multiple automatic production lines(Including automatic VTM tube production line, OEM VTM Tube, Flocked Swab Production Line, etc). learn more.

Covid Swab Test To Your Baby

Posted on 2022年4月11日2022年4月12日 by Dr. Lee

How To Properly Administer A Covid Swab Test To Your Baby

COVID-19 still plagues all parts of the world, and it will become more serious in spring, so there are still many people who need to do nucleic acid tests.

Do many parents have many questions about nucleic acid testing for children, especially babies, such as how to do nucleic acid testing for 10-month-old babies?

A little girl is being swab tested for nucleic acid

How do nucleic acid swabs test for children?

The nucleic acid test method for 10-month-old infants and adults is the same.

The method of throat swab is used. The throat is sampled.

When sampling, you only need to tilt your head slightly, open your mouth wide, and wait for the medical staff to use a flocked swab.

The swab stick can be sampled.

You may feel a little nauseous during sampling, but it is not particularly uncomfortable in general.

This kind of discomfort is acceptable to basic children, and the sampling process is relatively fast, so parents don’t need to worry too much.

Of course, it is not ruled out that some children do not cooperate. In this case, older children can communicate well, explain the situation, and parents can show the children how to carry out nucleic acid testing; if it is a child who is too young to communicate, then you have to grab it forcibly for sampling.

It should be noted that before going to the hospital for examination, you must make an appointment first, otherwise, it will be a waste of time.

Since different hospitals or testing centres generally have different methods for ordering nucleic acid testing.

It is important to understand the hospital nucleic acid testing process before officially performing nucleic acid testing.

In addition, it is not recommended to eat about two hours before the nucleic acid test.

If you are nauseous during the sampling, you may vomit or spit milk, but this is rare.

Baby swab tests

You bring your child’s safety to a stable place (a blanket on the floor, a changing table, another adult’s arms).
Consider wrapping them in a warm blanket to relax and prevent their elbows from helping you.
Show them a pacifier (make sure you can adjust their nostrils) if the pacifier will soothe them.

In general, bring the kids to a convenient place where you know them best.

As an adult helper, you can take the kids on their laps.

We recommend keeping your back against the patient’s reason and facing toward the person holding the flocked swab.

Then you can start!

The nucleic acid test method for children is the same as that for adults.

The throat swab is to extract the secretions of the respiratory tract for testing.

Because the baby has a problem with cooperation, it is best not to feed the child 2 hours before the nucleic acid test.

During the nucleic acid detection process, children may not cooperate.

If they have just finished eating food, they will vomit, which will affect the nucleic acid detection results.

Nucleic acid testing uses a long throat swab to smear on the back wall of the pharynx.

The medical staff are more skilled and will not cause much impact on the child.

Instructions for use, specimen collection

Note Sterile gloves, protective clothing and goggles should be worn when collecting and handling microbial specimens;

Open the peel bag and remove the flocked swab.

CellMedical Specimen Collection Swabs manufacturers

Determine the age of the child, the button clips are on the appropriate upper lube), make sure the swab is not too deep;
To collect samples, the observer (observer) should only be at the necessary distance.
Know the internal program processor of the laboratory. Or use a cotton swab to test the transport tube.
Send the sample to the lab for immediate testing.
In the laboratory, when taking clinical samples, wear protective gloves and protective equipment related to general precautions.
The conditions, timing, and volume of samples collected for clinical research are variables for obtaining reliable results. Follow recommended sample collection guidelines.
CellMedical swabs should only be used by personnel.

How to Perform Mrsa Nasal Swab

Posted on 2022年4月3日2022年4月3日 by Dr. Lee

Methicillin-resistant Staphylococcus aureus (MRSA) is increasingly rampant, and its infection spreads almost all over the world.

Together with AIDS and hepatitis B, it has become the three most difficult infectious diseases in the world.

How to prevent and control MRSA has become a problem that we cannot ignore.

The long-term treatment of MRSA infection, in addition to the direct economic burden on patients, will also generate some indirect costs, such as isolation, disinfection and so on.

n response to the prevalence of MRSA, we should propose strict detection and control measures.

MRSA screening is an important part of this.

Medical swabs are one of CellMedical’s specialties. Our goal is to ensure that our swabs give end users what they really need so they can always perform at the highest level.

In this article, we review what MRSA is, why using a nasal swab is the most effective way to test for MRSA, and how to perform a nasal swab test for MRSA.

What is MRSA?

MRSA, known as Methicillin-Resistant Staphylococcus aureus.

A highly drug-resistant strain of bacteria found mainly in people with long-term chronic diseases.

It is naturally resistant to penicillin and cephalosporin antibiotics, and also has varying degrees of resistance to commonly used erythromycin, etimicin, ofloxacin and other drugs.

Mainly seen in patients with bloodstream infection, lung infection and other site infections.

If the treatment effect is not good after a variety of antibiotic anti-infection treatment, it is necessary to consider whether there is mrsa infection. This bacterium is only effective against antibiotics such as vancomycin, teicoplanin, and linezolid.

MRSA is contagious through person-to-person contact and when a contaminated person touches an object or surface and leaves behind germs that can spread.

About 126,000 people are hospitalized and 19,000 die from the bacteria each year.

MRSA Nasal Swab

A nationwide cross-sectional study of MRSA screening in more than 10,000 patients showed that screening sites included the nose, throat, underarm, perineum, and wound or implant sites. Nasal swabs identified only 66% of MRSA carriers, and further swab testing could increase the detection rate.

Nasal and perineal swabs were identified in 82% of patients, with the axilla being the least useful site for carrier identification (8% detection rate).

Standard screening methods should include at least two swabs (nasal swab plus perineal or pharyngeal swab).

According to the American Society for Microbiology, nasal swabs have a higher detection rate of MRSA than traditional swabs. Flocked swabs provide better sample collection because their brush-like tips release more target cells and retain more liquid sample than foam swabs.

Our flocked-Swab sterile swabs are designed for the collection and transport of clinically significant bacteria.

With molded breakpoints, sampling is fast, safe and convenient.

Sterile Medical Specimen Collection Sterile Nylon Flocked Nasopharyngeal Nasal Swab

How to use MRSA Swab?

Once a sampling swab and transfer medium, such as CellMedical’s flocked-Swab media transfer system, has been selected, testers should wash their hands and wear clean gloves.

The process is as follows:

Remove the nasal swab.
Measure about 2 cm with a swab and mark with your finger.
Insert a cotton swab about 2 cm (about 3/4 inch) into one nostril.
Insert the swab into the nostril perpendicular to the nose (face), rotate the swab against the anterior nasal mucosa for 3 seconds, then gently rotate 3 times. .
Using the same swab, repeat for the other nostril.
Place the swab back into the virus delivery medium.
Place the end of the swab firmly so that the tip of the swab is in contact with the wet swab.
Tighten the cap of the tube, mark it well, and put it in a plastic bag and seal it.

Still have questions about MRSA swabs or other CellMedical single-use medical products? Contact us today!

How To Do Covid Swab

Posted on 2022年3月30日2022年3月30日 by Dr. Lee

Covid Swab testing include nasopharyngeal swabs and oropharyngeal swabs.

A sample taken by a doctor from a patient’s nasal cavity via a nasopharyngeal swab to test for Covid-19.

The oropharynx refers to the detection of secretions mainly from the soft palate, tonsils and other parts of the patient.

We need to pay attention to protection for nucleic acid testing.

The advantage of nasopharyngeal swabs over oropharyngeal swabs is that they are easy to operate.

The operator can stand behind the patient’s side, with only the nostrils exposed, without looking directly into the patient’s mouth.

There is basically no gag reflex, and the exposure risk of the sampler is lower than that of nasopharyngeal swabs.

How to do a covid nasopharyngeal swab without pain?

Since the flocked swab sampling is from the lower nasal passage all the way to the bottom of the nasopharynx.

It is more painful to perform, but in this process, the more nervous and conflicted, the more uncomfortable it will be during sampling.

Therefore, when doing a nasal swab, recommended to relax a little, then tilt your head back, keep still.

And use your nose to inhale and exhale through your mouth.

The collector will make this process quick and generally not too painful.

Does nasopharyngeal swab bleeding affect test results?

It will not affect.

Bleeding when taking a nasal swab is due to the rupture of capillaries in the nasal mucosa when the specimen is taken.

However, under normal circumstances, as long as the secretions from the nasopharynx are collected.

A small amount of bleeding will generally not affect the test results. have an impact.

However, if the secretions from the nasopharynx are not collected during the bleeding.

It is necessary to resample the nasal cavity on the other side after stopping the bleeding by resting.

Therefore, when doing a nasal swab, it is recommended to relax and listen to the collector.

So that sampling can be completed quickly.

Which is more accurate, nasal swab or throat swab?

It has been reported in the literature that when taking samples for SARS-CoV-2 virus nucleic acid detection, the results obtained by simultaneously sampling throat swabs and nasal swabs are generally equivalent.

Therefore, for a nasopharyngeal swab and pharyngeal swab, there is no special regulation on which one to do. It is recommended that those who need to do sampling can choose according to their own conditions. If they can tolerate pharyngeal swab collection, they can do pharyngeal sampling. After the nasal swab was collected, a nasal sampling was performed.

Can nasopharyngeal swab be made by themselves？

Not.

Since the nasal swab test needs to insert the swab deep into the nasal cavity to collect samples, there may be adverse reactions such as pain, gag reflex, tearing, and even nosebleeds during the process, causing physical discomfort and psychological discomfort to the collected person. The sense of resistance will be very strong, so there are highly professional requirements for the sampling personnel, and they cannot be done by themselves.

What Is Specimen Collection ?

Posted on 2022年3月29日2022年3月29日 by Dr. Lee

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.

Nasal Swab Test

Posted on 2022年3月26日2022年3月26日 by Dr. Lee

The person who did a few nasal swabs tells you how to do it without pain.

I’ve done nasal swabs several times and it’s been painless every time. Much more comfortable than a throat swab.

I see a lot of people on the Internet saying that the nasal swab is very painful, sour and straight to the sky, this is because your posture is not correct! !!

Nasopharyngeal swabbing is generally the preferred method of specimen collection for COVID-19 testing.

Looking at this schematic diagram, in fact, no matter the nasal swab or the throat swab.

Their purpose is to let the flocked swab sample from the inner wall of the throat.

Nasal swabs are not meant to poke your heavenly lid!

Nasopharyngeal culture

A nasopharyngeal culture is a test that examines a sample of secretions from the uppermost part of the throat, behind the nose, to detect organisms that may cause disease.

Nasopharyngeal Swab Pcr Test

Therefore, you should tilt your head as far back as possible to allow the cotton swab to go in horizontally.

That way the only thing you feel is a little bit of cold, and it’s over in less than 5 seconds.

But if you keep your head upright, then the flocked swab can only be poked from bottom to top, which will definitely pierce the upper part of the nasal cavity.

That position is very sensitive, and it will hurt very much when pierced.

And because the doctor can’t see the location, he can only stir in it by the feel of the hand, so you will be sour to tears.

One sentence summary: Tilt your head back and let the flocked swab go in and out horizontally all the way.

Why you should take the swab test.

This test identifies viruses and bacteria that cause upper respiratory symptoms.

These include:

Bordetella pertussis, the bacterium that causes whooping cough Meningococcus meningitidis.

The bacterium that causes meningococcal meningitis is Staphylococcus aureus, the bacterium that causes staph infections Methicillin-resistant Staphylococcus aureus virus infection.

For example, influenza or respiratory syncytial virus cultures can be used to help determine which antibiotic is appropriate to treat infections caused by bacteria.

Normal Results The presence of common organisms in the nasopharynx is normal.

What an abnormal result means The presence of any disease-causing viruses, bacteria or fungi means that these organisms may be causing your infection.

Sometimes, organisms like Staphylococcus aureus can exist without causing disease.

The test can help identify resistant strains of the organism (methicillin-resistant Staphylococcus aureus, or MRSA) so that people can be quarantined if necessary.

Risks There are no risks to this test

How to Collect DNA Buccal Swabs

Posted on 2022年3月19日2022年6月2日 by Dr. Lee

DNA can tell you a lot about you.

DNA sample collection DNA is collected from an individual (or individuals) using sterile swabs while following appropriate collection techniques.

A DNA test can do this by looking at your DNA to determine the DNA “function” it exposes in your genetic code.

This is the “feature” that some tests can provide for health and life.

The reason for the method information.

Under the license of numerous DNA companies, some will sequence your DNA through your clients to help you understand your family tree, the migration patterns of your ancestors.

Proper DNA sample collection techniques are an essential skill for forensic scientists, crime scene investigators, and medical examiners. We can collect DNA samples from many different sources.

Products found at a criminal crime scene that may not actually involve a true crime may provide DNA evidence.

What is a DNA test and how is it done?

Use your doctor’s genetic sample to test you or be asked to spit in a test tube , or be asked to flocked swab in a tube in your mouth.

If you have frequent dry mouth, you need to do a cheek test. Another could be a lemon bite, the taste of a lemon, and then a bite of the lemon. When to get those drools back. Besides, you can also learn a little more but about DNA testing things!

DNA sample collection method

: generally choose routine: bloodstain, oral test, long sample;

Swab collection method:

Rinse your mouth with water to make sure there is no food residue in your mouth.
Open the DNA storage solution tube. Turn the cap down and the spout up.
Unwrap you and stick your fingers around the probe. It is important not to probe with a profiler of a profiler, as this can affect the profiler results.
Insert a medical DNA swab into the mouth and rub 30 times on the cheeks.
Take a cotton swab and dry the swab in the shade; use the same method to collect three DNA subs.

Exactly how to prevent DNA evidence contamination

When managing all organic evidence for DNA screening, it is imperative for investigators and laboratory staff to wear the correct personal safety equipment, use tidy instruments, and avoid interactions with various other objects to reduce the threat of compromise of any evidence.

Improper storage space, direct exposure to direct sunlight, or simply being comfortable can all cause damage to DNA. To avoid damage, keep accumulated evidence in a dry and cool place and send it to the laboratory immediately.

What is the source of DNA you can wipe?

You can easily wipe down many common DNA sources. These include blood, feces, urine, semen, saliva, hair, teeth, bones, and cells. DNA can also accumulate from selected surfaces and materials.

Where can DNA samples be obtained?

DNA samples can be extracted from drinking glasses, cigarette butts, food with bite marks, bite marks on the skin, etc. You can also wipe down frequently touched surfaces such as computer keyboards, doorknobs, steering wheels, glasses, and countertops.