Throat swabs are generally use to check for what disease
If we are sick, it is very important to seek medical treatment in time. When we arrive at the hospital, in addition to listening to our description of the medical history, the doctor also needs to perform corresponding examinations. Only through medical history consultation and laboratory examinations can we diagnose the disease and its medication plan.
When we go to the hospital for physical examination, the items include blood test, urine test, stool test, etc. What we are going to mention today is a test call throat swab culture. I believe that this kind of test is familiar to everyone this year, and everyone should have been expose to it. So what kind of disease do throat swabs usually check? Next, I will give you a specific description of this issue.
Throat swab inspection is to take secretions from the throat, conduct bacterial culture, and then conduct a drug susceptibility test based on the infected bacteria. The results of the throat swab examination can provide an important basis for the accurate medication of the clinician.
Throat swabs are generally used to check upper respiratory diseases, such as acute suppurative tonsillitis, acute pharyngitis, diphtheria and other respiratory diseases.
After taking out the secretions and performing corresponding examinations,
it can be known which bacteria are the main infections of the patient. Finally, the doctor will use the susceptibility results of the cultur bacteria as an important basis for clinical medication.
Note that when undergoing a throat swab examination, there may be mild neural reflexes, so everyone must hold back.
Which of the following diseases can be used for throat swab collection?
We are no strangers to throat swabs, but do you know which diseases it applies to? Take a look.
In general, the shaping of the pharyngeal isthmus requires all normal and beneficial bacteria in the oral cavity without the growth and development of pathogenic bacteria. The germs in the throat are all from the outside, and they do not get sick under normal conditions, but infections and other external factors can cause illnesses such as infections under the body or part of the immune system. Therefore, bacterial culture of throat swabs can isolate pathogenic bacteria, which is conducive to the diagnosis of diphtheria, purulent tonsillitis and acute pharyngitis.
Pharyngeal swabs are often use clinically to check bacterial or fungal inflammation of the throat, such as chronic pharyngitis, mycoplasma infection, candidal pharyngitis, diphtheria, suppurative tonsillitis, and acute pharyngitis.
Pharyngeal swabs are mainly use for bacterial culture to identify the pathogens of the above diseases. When the patient has repeated pharyngeal pain, pharyngeal discomfort, itching, painful swallowing and other symptoms.
Patients will experience repeated throat pain, pharyngeal discomfort, itching, painful swallowing. In severe cases, they will have slow onset, headache, fatigue, fever, cough, and a small amount of sticky sputum. Sometimes they will continue to have a high fever or even loss of appetite. symptom.
When pathogenic bacteria are detecte in sputum and throat swab secretions, it is regard as a respiratory infection. Cooperate with other inspections (such as X-ray fluoroscopy, B-ultrasound, etc.) to confirm the location of the respiratory system infection. Common pathogens for respiratory infections include: Staphylococcus, Pneumococcus, Haemophilus influenzae, Klebsiella pneumoniae, Staphylococcus, Streptococcus infection, Pseudomonas aeruginosa, Escherichia coli, etc.
If tuberculosis is shaped, it is tuberculosis. If you create a yeast-like yeast, you should consider whether the antibiotics are not use well or too much during the infection period. The antibiotics should be stop immediately and replace with antifungal drugs, such as amphotericin B, griseofulvin, clotrimazole suppository, etc.
① Check the doctor’s order and be prepare.
②. Ask the patient to rinse his mouth with clean water, then let the patient open his mouth to make an “ah” sound, and use a tongue depressor if necessary.
③. Take out the disposable sampling swab, gently and quickly wipe the two palatal arches, tonsils and posterior pharynx three times.
④ Put the swab head vertically to avoid contamination of the tube wall, forcefully break off the tail of the swab at the mouth of the sampling tube, discard the tail, tighten and cover the tube cap (strictly perform aseptic operation)
⑤ After sampling, check the patient’s name again.
⑥. Indicate the retention time of the specimen and submit it for inspection in time.
①. When putting the swab into the tube, it should be place vertically, not to wipe it to the bottle mouth to avoid contamination. When placing it in the transfer box, it should be place vertically to avoid leakage.
② It is best to send/sent to the laboratory for inspection on the day of sampling.
③. Appropriate specimens must be consistent with the inspection form before inspection. The appearance of the sampling tube must be clear and well-known and basic information. Specimens without basic information cannot be tested; specimens submitted for inspection must be submitted (or electronically submitted in advance). , Submit inspection form and other materials. The submitted materials should be ensured not to be contaminat and not to be put together with the specimen.
④. In order to prevent sectioning when sampling, it should be avoide within 2 hours after the patient has eaten. The collection action is gentle, stable and agile to prevent discomfort to the patient.
⑤. The throat swab should not touch other parts during the collection process to ensure the accuracy of the remaining specimens.
⑥. When you decide to do a throat swab, please do not use antibacterial drugs.
⑦. The depth of throat swab collection and the length of mucosal contact time. When collecting throat swabs, if the subject’s vomiting reaction is relatively large, the sampling time is not enough or the inferior quality swabs are use, which may cause false negatives and delay treatment.
What material is forbidden for throat swab?
We all know that the material of medical swabs has always been the focus of attention. After all, medical swabs are directly in contact with the skin. It’s OK to contact the skin with alcohol for disinfection. It’s OK. But what about those that directly contact the organs? For example, the throat swab we are most familiar with during the epidemic.
We know that the throat swab is in direct contact with the sampling site, and the material of the sampling head is closely relate to the subsequent detection.
The sampling swab head should be make of PE synthetic fiber or artificial fiber. Calcium alginate sponge or wooden stick swab (including bamboo stick) should not be use. Cotton products should not be use in the head of swab, because the fiber of cotton has strong adsorption of protein, and it is not easy to elute into the subsequent preservation solution; while the wood stick or bamboo stick containing calcium alginate and wood components is broke and soake in preservation Protein can also be adsorb in the solution and even inhibit the subsequent PCR reaction.
It is recommend to use synthetic fibers such as PE fiber, polyester fiber and polypropylene fiber to make swab head. Natural fibers such as cotton are not recommend.
Do not use calcium alginate sponge for throat swab material!
Neither calcium alginate additive should be add in the cotton swab handle material, nor the use of wooden stick or bamboo stick is recommend.In a word, the sampling swab should ensure the sampling amount and release amount, and the selecte material should not have substances that affect the subsequent detection.
What material is forbid for throat swab.
Methods: virus swab specimens were collecte
We all know that the collection method of virus swab specimen is basically to use the swab to sample the infecte place or part of the virus, and then put it into the virus sampling tube containing preservation solution without touching other places, so as to conduct virus detection later. So basically, the soup is change without changing the dressing.
For example, throat swabs and nasal swabs were use to detect new coronavirus
Inform the patient of the purpose of examination, collection method and collection time. It is best to collect specimens before using antibiotics.
To study the clinical effect of the method
Secretions were collecte from pharynx or tonsil for bacterial culture or virus isolation to assist in clinical diagnosis and treatment.
Disposable sampling swab, virus sampling tube, tongue depressor and biological bag
(1) Ask the patient to sit down, tilt his head back, open his mouth and make a “ah ~” sound
(2) The patient’s tongue was fix with a tongue depressor, and a disposable swab was used to cross the tongue base to the posterior pharyngeal wall, tonsil recess and lateral wall;
(3) Repeatedly wipe 3-5 times to collect mucous membrane cells or sputum
(4) . gently remove the swab to avoid touching the tongue, the suspension, the oral mucosa and saliva
(5) Put the swab into the virus sampling tube gently and vertically. Break off the tail of the swab, and leave the tail of the swab so that it is completely place in the tube. Be careful that the swab does not touch the wall of the tube.
(6) . tighten the cap, mark it, and seal it in the biosafety bag.
(7) It should be sent to the laboratory for testing in time. If it can not be sent for inspection in time, it should be store at low temperature.
(1) Ask the patient to sit down with his head slightly back and remove the secretion from the front nostril first;
(2) . measure the distance from nostril to ear base with swab and mark with finger
(3) . gently insert the swab into the nostril until it is marke or stopp when there is obstruction. Let the swab stay in the nose for 15-30 seconds, and then rotate it gently three times.
(4) . slowly pull out the nasal swab and quickly put it into the virus sampling tube. Then break the swab, leave its tail and place it completely in the tube.
(5) . tighten the cap, mark it, and seal it in the biosafety bag.
(6) If it is necessary to collect from two nostrils, one swab should be used.
(7) It should be sent to the laboratory for testing in time. If it can not be sent for inspection in time, it should be store at low temperature.
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A throat swab is a swab use to check whether the throat is disease and to sample the throat.
It can be said to be a detection method for understanding the patient’s condition, oral mucosa and pharynx infection.
Because the pharynx is cause by infections caused by external bacterial infestation when the body’s body or local resistance drops,
the doctor needs to collect some cells or viruses for observation when we seek medical treatment, so as to understand the patient’s disease Illness.
Because the new coronavirus is mainly spread through droplets and contact, and there are ACE2 receptors in the respiratory tract that are necessary for the new coronavirus invasion,
the respiratory tract of the infected person is the main gateway for the new coronavirus invasion, so the infecte person will Pneumonia occurred.
In the early stage of virus infection, if blood is use to detect nucleic acid in such suspected cases, false negatives are likely to occur.
because the blood may not have been infecte by the virus in the early stage of virus infection.
With throat swabs, samples from the patient’s nasopharynx, oral cavity and other lower respiratory tract secretions will have the highest probability of being positive,
so throat swab sampling is the best choice for nucleic acid detection.
Moreover, the current nucleic acid detection technology is considere to be a relatively mature detection method.
It only needs to wipe the throat area for a few seconds to collect the specimen.
①. First, check personal information with the subject.
②. Then tear off the outer packaging of the sampling swab and take out the sampling swab;
③. Let the subject open his mouth to make an ah sound, expose the throat, and if necessary, press the tongue down with a tongue depressor
(lightly press the front 2/3 of the tongue and the back 1/3);
④. Take out the sterile swab, gently and quickly wipe the bilateral pharyngeal tonsils and posterior pharyngeal wall 3 times,
put the swab head into the preservation solution,
⑤Strongly buckle off the tail of the swab at the mouth of the preservation tube, discard the tail, tighten and cover the tube cap.
(strictly perform aseptic operation).
⑥. Check the patient’s name again after sampling;
⑦. Put the sample in a sealed bag and a special transfer box, and quickly send the sample to the laboratory for inspection.