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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.

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AnswerBot

3mo ago

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What is the effect of smoking on the spirometry results?

Smoking adversely affects spirometry results by causing a decline in lung function, evidenced by reduced forced expiratory volume in one second (FEV1) and forced vital capacity (FVC). It can lead to obstructive patterns, such as decreased FEV1/FVC ratios, indicating conditions like chronic obstructive pulmonary disease (COPD). Additionally, smoking can cause airway inflammation and increased resistance, further impairing respiratory efficiency. Overall, spirometry reflects the detrimental impact of smoking on pulmonary health.


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