Several situations in which the bronchial dilation test is negative

Speaking is an indispensable and extremely important existence in our lives, but how much do we know about the bronchi that are closely related to it? When the bronchodilator test is negative during examination, how should we divide it into several situations? Prime Minister, we first need to understand several situations in which the bronchodilator test is negative. Several situations are listed below.

Generally, if the bronchial dilation test is negative, asthma can be basically ruled out and it is considered to be caused by a cold.

It may be bronchial asthma. Bronchial provocation testing measures airway responsiveness, and bronchial dilation testing measures the reversibility of airway airflow limitation. Both are relevant to the diagnosis of bronchial asthma. Bronchial asthma is manifested by repeated attacks of wheezing, shortness of breath, chest tightness or coughing, which are often related to exposure to cold air, irritants, upper respiratory tract infections, allergens, etc.; wheezing sounds in both lungs and prolonged expiratory phase during attacks; excluding other diseases that cause wheezing; if the above symptoms are atypical, asthma can also be considered if one of the following occurs: 1. Positive bronchial provocation test; 2. Positive bronchial dilation test; 3. Diurnal PEF variation rate ≥ 20%

Bronchodilation tests play a reference role in the diagnosis of asthma. A positive result helps in the diagnosis of asthma, but a negative result cannot deny the diagnosis of asthma. Guidance: It is recommended to go to the hospital to see a respiratory physician to conduct lung function, chest X-ray and other tests to further clarify the diagnosis.

Bronchodilator tests are used to measure airway reversibility. Effective bronchodilators can improve airway spasm during an attack and improve lung function indicators. A negative result indicates that there is a problem with airway reversibility and you should go to the hospital to develop a comprehensive and scientific treatment plan. Do not delay diagnosis and treatment, actively cooperate with treatment

If we encounter any of these situations, there is no need to panic. Mastering the several categories of skills listed above will allow you to easily understand the actual situation and take timely countermeasures without having to take unnecessary detours. Finding countermeasures as soon as possible will also have a great positive effect on controlling the disease.