In both the helium dilution test and nitrogen washout functional residual capacity (FRC) determinations, at what point should the patient normally be connected to the system to begin the test?
A) Resting expiration
B) Full forced inspiration
C) Resting inspiration
D) Full forced expiration

Question

Quizplus · Accepted Answer

The valve is turned to connect the patient to the breathing circuit usually at the resting expiratory level of the FRC.

In Both the Helium Dilution Test and Nitrogen Washout Functional