How to Determine if a Child's Asthma Has Improved

Generally, it can be determined whether childhood asthma has resolved by evaluating the following aspects: pulmonary ventilation function testing, bronchodilation test, measurement of exhaled nitric oxide concentration, bronchial provocation test, etc. The specific details are as follows:

1. Pulmonary Ventilation Function Testing: This assesses lung function by measuring gas exchange volumes and is helpful in monitoring asthma control. Patients usually need to take several deep breaths to achieve maximal inhalation and exhalation capacities and perform a series of breathing maneuvers under guidance.

2. Bronchodilation Test: This involves using bronchodilators such as salbutamol to relieve airway spasms, typically completed within 5-10 minutes. It is used to determine the presence of reversible airflow limitation and assists in diagnosing asthma and other respiratory diseases.

3. Measurement of Exhaled Nitric Oxide Concentration: Nitric oxide concentration serves as an indicator of airway inflammation and can help identify asthma exacerbations and their severity. Patients need to perform several consecutive deep breaths using a specific device to record nitric oxide levels in exhaled air.

4. Chest X-ray Examination: X-ray imaging can reveal abnormalities in lung structure and assist in evaluating the extent and severity of asthma-related changes. Anteroposterior and lateral images are taken in standing or supine positions with minimal radiation exposure and no special preparation required.

5. Bronchial Provocation Test: This test aims to evaluate airway responsiveness to stimuli such as smoke or medications and can help identify bronchospasm. A substance known to induce bronchoconstriction is administered, followed by observation of the patient's airway response.

Asthma is a chronic condition requiring long-term management and treatment. Even if symptoms have improved or resolved, it is essential to continue following the doctor's recommendations for standardized therapy.