The normal response to an increasing PaCO2 is

A pulmonary function technologist is performing quality control on a nebulizer used in the 5-breath dosimeter bronchial challenge. The target output of the device is 0.09 mL, plus or minus 10%. After 10 actuations, the nebulizer output was 75 µL with a 2.0 mL initial saline dose in the nebulizer. The technologist should

The normal response to an increasing PaCO2is

The desiccant column on an infrared CO2analyzer is pink. The readings obtained from this analyzer would result in

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 is 34 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