In Both the Helium Dilution Test and Nitrogen Washout Functional

question 65

Multiple Choice

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

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