A Dry Rolling-Seal Spirometer Is Checked by Injecting 3-L Volumes

question 12

Multiple Choice

A dry rolling-seal spirometer is checked by injecting 3-L volumes at different flows (high,medium,and low) with the following results: Which of the following explains these data?

• A) An improperly functioning bacteria filter is in the circuit.
• B) The rolling-seal is sticking or leaking.
• C) The spirometer has not been calibrated.
• D) The 3-L volume is being corrected to BTPS.

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