A Pulmonary Function Technologist Uses a 3-L Syringe and a Tank

Multiple Choice

A pulmonary function technologist uses a 3-L syringe and a tank of 10% He to prepare serial dilutions of gas to verify the linearity of a helium analyzer used for closed-circuit measurements of FRC.The following data are recorded: On the basis of these results,the technologist should conclude that:

A) The He analyzer is performing acceptably.
B) The He analyzer is nonlinear.
C) The syringe had a significant leak.
D) The He tank was mislabeled.