NIOSH - Centers for Disease Control and Prevention

Delete Curve; Coach: Blast FASTER. Cough in ... (1-800-232-4636) TTY: 1-888-232-6348 email: [email protected] or visit the NIOSH Web site at www.cdc.gov/niosh ... U.S. Department of Health and Human Services .... 3 or More Good Curves.
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Get Valid Spirometry Results EVERY Time 12 FLOW (L/S) (BTPS)

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A Valid Test has: 3 or More Good Curves and Repeatable FVC and FEV1*

Sharp peak

Flat (plateau) before 15 seconds long

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Smooth curve 3 2

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Smooth descent to baseline

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Vertical rise

Steep climb

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Green = Good Curve Red = Error

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HOW TO CORRECT TEST ERRORS

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Incomplete Inhalation Coach: Take a DEEPER breath

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Curves have same shape but are different sizes

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Curve dips

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Abruptly flattens

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Curve tilts

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Curve moves backwards

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Curve drops down

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Flat line