Can nucleic acid detection nose be airtight?
It is recommended not to do it. You can take a sample from your throat for testing.
Nasal congestion may lead to congestion, edema, increased secretion, runny nose and sneezing of nasal mucosa. During this period, nucleic acid detection is not easy to operate, which will aggravate the symptoms of nose swelling and pain.
Nucleic acid detection sampling can use nasopharyngeal swab and cotton swab to collect nasal mucosa secretions from the front nostril for inspection. For suspected patients, nasopharyngeal swab sampling is safer and can protect the sampler. When sampling nasopharyngeal swab, the sampler can stand behind the side of the suspected patient for sampling. In this way, when patients sneeze and cough, secretions are not easy to splash on the sampler, thus avoiding the secondary spread of infection.
Generally speaking, nasal swab sampling is not suitable for people with acute nasopharyngeal diseases (such as bleeding and edema).
Does nucleic acid detection affect the result of nosebleed?
Generally, it does not affect the performance.
If the nasal swab is heavy during nucleic acid detection, or the local mucosa itself is fragile, bleeding may occur. There is no need to worry about the nosebleed of nucleic acid detection nasal swab, which may be mucosal bleeding caused by local injury.
In this case, cotton or gauze can be used to continue pressing to reduce local bleeding. If necessary, ice can be used to contract local blood vessels to stop bleeding. People who use anticoagulants for a long time may have nosebleeds for longer. At this time, as long as the local pressing time is prolonged, most of the shunting nosebleeds can be relieved.
How deep should the nose be inserted for nucleic acid detection?
When sampling from the nasal cavity for nucleic acid detection, it is necessary to contact the nasal swab with the posterior wall of the nasal cavity and pharynx for sample collection, stay for about three seconds, and gently rotate for one week to complete the sampling.
Nucleic acid detection is a novel coronavirus. The doctor will use a sterile cotton swab to take out nasopharyngeal secretions through the nasal cavity. This method has high accuracy, but most hospitals usually check throat swab secretions. Nucleic acid testing is carried out by a professional testing doctor collecting samples. They don't infect the nose.
Nucleic acid detection sampling can use nasopharyngeal swab and cotton swab to collect nasal mucosa secretions from the front nostril for inspection. For suspected patients, nasopharyngeal swab sampling is safer and can protect the sampler. When sampling nasopharyngeal swab, the sampler can stand behind the side of the suspected patient for sampling. In this way, when patients sneeze and cough, secretions are not easy to splash on the sampler, thus avoiding the secondary spread of infection.
Novel coronavirus nucleic acid test should be rechecked. If it is confirmed to be DNA, it should be confirmed by CT examination. Novel coronavirus is highly contagious and must be treated in isolation, as well as close contacts.