What is considered a significant change in preshift to postshift, or prebronchodilator to post bronchodilator, spirometric results? What factors might account for a change in spirometric values from preshift to postshift workers?

What is considered a significant change in preshift to postshift, or prebronchodilator to post bronchodilator, spirometric results? What factors might account for a change in spirometric values from preshift to postshift workers?

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Expert Solution

Step 1: Significant change

A significant change in spirometric results from preshift to postshift, or from prebronchodilator to post bronchodilator, typically involves a noticeable alteration in lung function parameters such as forced expiratory volume in one second (FEV1) or forced vital capacity (FVC). Significant changes often indicate a potential impact on respiratory health.

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