Is it necessary to undergo pulmonary function tests for difficulty in breathing?

Generally, whether impaired breathing requires pulmonary function testing depends on the specific circumstances. If it is caused by transient, physiological factors, pulmonary function testing is usually unnecessary; however, if it results from persistent, pathological factors, then pulmonary function testing is required. Detailed analysis is as follows:

If impaired breathing is due to factors such as emotional excitement, vigorous exercise, or being in an enclosed environment and the symptoms are short-lived and resolve spontaneously after rest, this is considered a physiological response, and pulmonary function testing is generally unnecessary. In such cases, symptoms can be improved by regulating emotions, breathing fresh air in open spaces, and taking appropriate rest.

If impaired breathing persists or is accompanied by symptoms such as coughing, phlegm production, chest tightness, or wheezing, it may be related to lung diseases such as chronic obstructive pulmonary disease (COPD), asthma, or pneumonia. In such cases, pulmonary function testing is necessary. Pulmonary function tests can assess airway patency and ventilatory capacity, helping identify the underlying cause and providing a basis for subsequent treatment.

To reduce the occurrence of impaired breathing, it is important to maintain good indoor air circulation and avoid staying in environments with air pollution or poor ventilation for prolonged periods. Developing a regular exercise habit can enhance pulmonary function and respiratory muscle strength. Additionally, quitting smoking and avoiding secondhand smoke can reduce airway irritation and help maintain respiratory health.