During calibration of a spirometer, injection of air with a 3-liter syringe results in the following:

Using another 3-liter syringe, air is again injected with the following results:

A pulmonary function technologist should conclude that the

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

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

To assure linearity of an oxygen analyzer, calibrate with

A pulmonary function technologist is reviewing results of a recent mechanical diffusion simulation using a 3-liter syringe. The test was conducted at a room temperature of 22°
C. The following BTPS results were reported:

Which of the following should the technologist do?