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Is There a Role for Screening Spirometry?

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In obstructive lung disease, the characteristic change in spirometry is a reduction in the forced expiratory volume in the first second (FEV1) with respect to the vital capacity. Moreover, the severity of the obstruction can be graded by referencing spirometric measurements to age, sex, and height predicted normal values. Spirometry, however, should be considered a medical test, and not simply a vital sign that anyone can perform. Indeed, both technical issues and tester skills can profoundly affect the results and interpretations. Properly done spirometry can guide therapies and predict outcomes, but using spirometry to screen for obstructive lung disease in asymptomatic populations can be problematic, and the effects of screening spirometry on outcomes have yet to be determined. The value of spirometry is increased when it is of good quality, is interpreted properly, and is used in high-risk populations as a case-finding rather than a screening tool.

Keywords: chronic obstructive pulmonary disease; screening tests; smoking cessation; spirometry

Document Type: Research Article

Publication date: January 1, 2010

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