I went to the clinic a few days ago, and an asthmatic child (8 years old) came to me for a review. The parents of the child told me that the asthma treatment was not satisfactory after nearly a year of treatment, and I don’t know what caused it. I asked my children when they had a lung function test. Parents said that they had done it only once. It was done when they were sick a year ago, but they haven''t done it since. After reviewing the lung function, I found that the child''s lung function did not improve at all. Finally, I found the reason for the child because the child''s inhalation method was not correct, and the medicine was not sucked in at all.

　　Because many parents do not know much about this test, they do not understand the importance of this test in the treatment of asthma. Today I summarize, I hope that parents should understand and pay attention to this inspection.

　　What is a lung function test

　　Pulmonary function test is one of the necessary tests for respiratory diseases, for early detection of lung and airway lesions, evaluation The severity and prognosis of the disease, evaluating the efficacy of drugs or other treatments, identifying the cause of dyspnea, diagnosing the location of the lesion, assessing the tolerance of lung function to surgery or labor intensity tolerance, and monitoring of critically ill patients It has important guiding significance.

　　Who is suitable for lung function tests?

　　 1. Chronic obstructive pulmonary disease (COPD), chronic bronchitis, emphysema and other respiratory diseases Patients regularly review-monitor the course of the disease.

　　 2. Seasonal cough and asthma attacks-see if you have asthma.

　　 3. Patients with chronic cough, dyspnea, shortness of breath, wheezing, chest tightness, etc.-clear cause.

　　 4. People with repeated upper respiratory tract infections-observe whether there is damage to lung function.

　　 5. Smoking and coughing for a long time, or a long-term large number of smokers-to see if the small airway function has changed.

　　 6. Chest radiograph abnormality-to judge the degree of lung function damage.

　　7. Before anesthesia and surgery—evaluate the risk of surgery and the prediction of postoperative recovery.

　　8. Evaluation of clinical efficacy and disease progression after clinical treatment of respiratory diseases.

　　9. Health checkup.

　　What do you need to pay attention to before lung function test?

　　Good coordination is essential for lung function test. In order to help you master the examination method as soon as possible, cooperate with the doctor''s operation correctly, and obtain reliable results, please prepare as follows:

　　1, rest quietly for 15 minutes before the examination;

2. After inhaling deeply with your mouth, blow hard (explosive) quickly and continue for 6 seconds without interruption (such as blowing candles);

　　3. You need to stop the corresponding bronchial tube as required by your doctor Expansion agents, such as theophylline, b2 receptor agonists, hormones, anti-allergic drugs, etc., if you do not understand, please consult your doctor;

　　 4. You can eat breakfast as usual on the day.

　　Is there any discomfort in the lung function test? Has the lung function test hurt me?

　　Pulmonary function test mainly understands people''s breathing ability, generally Very safe. However, some items occasionally cause some discomfort, such as cough, chest tightness, tightness, wheezing, heart palpitations, slight hand tremor, hoarseness, sore throat, dizziness, headache, blushing, etc., generally can be relieved by medication or after rest . Some patients need to pay attention to exclude the unsuitable examination before examination. Please consult your doctor.

　　Which patients are not suitable for lung function tests?

　　1. Those who have large hemoptysis, pneumothorax, huge pulmonary bullae, unstable cardiac function in recent weeks;

　　3. Those who have edema of the larynx or vocal cords and moderate or above abnormal ventilatory function should not undergo bronchial provocation test.

　　Your doctor will choose the appropriate examination method according to your specific situation.

　　Can children do lung function?

　　Generally children over 5 years old can cooperate with lung ventilation function test, bronchial provocation test, bronchodilation test, etc. Lung function test items. For individual children with good coordination, the age can be appropriately relaxed to 4 years old. Lung function tests for infants and young children under 3 years of age require special instruments and equipment.

　　Which children need to do lung function?

　　1, repeated cough or accompanied by wheezing;

　　2, cough lasting 2- Antibiotic treatment is ineffective for more than 3 weeks;

　　3. Repeated "cold" development to the lower respiratory tract lasting more than 10 days;

　　4. Evaluation of the condition of children with asthma;

　　5. Acute onset choking, hoarse voice, difficulty breathing;

　　6, early identification of acute bronchitis, pneumonia and asthma in infants and young children;

　　7, other breaths Systemic diseases.

　　How often do lung function tests for children with asthma?

　　For this problem, I specifically consult national experts in the national lung function group, everyone’s The consensus is as follows: for the first visit to the child, once asthma is diagnosed, it needs to be reviewed once a month initially. After the condition is stable, an assessment is done every two to three months. Pulmonary function test is convenient to assess the degree of asthma control, whether it is reduced, and recheck lung function one month after the reduction to observe the child''s condition after withdrawal. In addition, in a timely review, if the child''s drug inhalation method is incorrect and affects the recovery of the small airway, the doctor can also find problems in time through the situation of lung function and correct the child''s medication in time to facilitate the child''s recovery.