Currently, there are nucleic acid tests, blood tests, and a combination of CT lung tests to detect new coronary arteries. What is the difference between a pharyngeal sw

ab and a blood test? Let's learn more about it.

New crown virus detection is currently divided into nucleic acid testing and (blood) antibody testing, generally speaking, in the clinical diagnosis, the two combined testing to determine whether the person being tested is infected with the virus and the stage of the disease.

What is the difference between a pharyngeal swab and a blood test?

The Nucleic acid test is performed by taking a specimen from the respiratory tract and detecting the RNA of the virus in the patient's secretions to see if the patient is infected with the virus. The specimen is collected from the patient's blood for antibody testing to see if there are antibodies produced by the virus in the patient's blood, and to detect whether the patient has been infected by the virus and the stage of the disease. The higher the viral load, the higher the likelihood of a positive nucleic acid test. Theoretically, nucleic acid can be detected within 1-2 days of infection.

No matter what the disease is, blood tests are an essential part of the clinical workup. If the peripheral blood count is normal or decreased, and the lymphocyte count is decreased, then it is likely to be a viral infection, and then combined with the patient's epidemiology and symptoms, the doctor will be able to determine whether the patient is a suspected case of neocoronavirus infection, and only then will there be a follow-up viral nucleic acid test. So in this respect, blood tests can be helpful in detecting NIV.

What is the difference between a pharyngeal swab and a blood test for NCCV?

The nucleic acid test results are an important reference for the diagnosis and evaluation of the efficacy of the new coronavirus pneumonia, and the screening specimens for the nucleic acid test are mostly derived from deep cough sputum or pharyngeal swabs. Since oropharyngeal swabs are relatively simple to perform with an open mouth, they are more commonly used in clinical practice. However, if the pharyngeal swab is not collected properly, it may result in a "false negative" result, which may delay the patient's treatment. Therefore, the nucleic acid and blood antibody tests need to complement each other to confirm the presence of infection and the status of the patient.