A 9-year-old girl had an FVC of 2.35 L1 year ago. She was 122 cm (4 ft) tall and weighed 29.5 kg (65 lb). Her current height is 127 cm (4 ft 2 in), and her weight is34 kg (75 lb). The current FVC measurement is 2.20 L. The quality of both tests met ATS/ERS goals. A pulmonary function technologist should conclude the change is
A. Not significant since it is less than a 15% decrease.
B. Not significant since it is within normal test variability.
C. Significant since a decline is not expected.
D. Significant since her weight has changed.
A 9-year-old girl had an FVC of 2.35 L1 year ago. She was 122 cm (4 ft) tall and weighed 29.5 kg (65 lb). Her current he
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A 9-year-old girl had an FVC of 2.35 L1 year ago. She was 122 cm (4 ft) tall and weighed 29.5 kg (65 lb). Her current he
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