When Using a Small-Bore Catheter with a One-Way Valve Such

question 9

Multiple Choice

When using a small-bore catheter with a one-way valve such as a Heimlich valve, how can you determine definitively that there is or is not a small air leak?

• A)Connect to an underwater seal.
• B)Increase the FIO₂ and note clinical changes.
• C)Listen for air movement.
• D)Watch the valve to see if it moves.

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