How can smoking immediately prior to spirometry testing interfere with the results of the and 8203 test?

Smoking immediately prior to spirometry testing can significantly interfere with the results by causing acute bronchial constriction and altering lung function. It can lead to increased airway resistance and decreased airflow, which may falsely indicate impaired lung function. Additionally, smoking can introduce particulate matter and toxins that affect the accuracy of measurements. As a result, the test may not accurately reflect the individual's true respiratory status.