Bronchitis does not affect the results of the new crown nucleic acid test, bronchitis in the clinic generally refers to bronchopneumonia, and the new crown nucleic acid test is usually a pharyngeal swab or nasal swab, from the back wall of the pharynx or the back wall of the nasal passages to take samples for testing, most of the samples will not be deep in the lungs to take samples for testing, and will not exacerbate the symptoms of the disease. The New Crown Nucleic Acid Test takes a shorter time to take a sample and is less irritating to the bronchitis condition. Bronchitis is caused by inflammation of the bronchial tubes, whereas the C.N.A. test detects the C.P.D. virus, so there is no conflict between the two. The test should be done by a professional, and the patient should cooperate with the registration and medical history. Tip: In this article, the terms “new coronavirus pneumonia and new coronavirus pneumonia” were renamed to “new coronavirus infection” on December 26, 2022, as announced by the National Health Commission.