Which of these approaches would be most appropriate for the nurse to take when performing a pulmonary artery wedge pressure reading?
1. use no more than 1.25 ml of air to inflate the balloon
2. pull back on the syringe to deflate the balloon
3. leave the balloon slightly inflated to maintain integrity
4. maintain balloon inflation for 3 to 5 minutes to obtain a stable reading
1
Rationale: Using the smallest inflation volume possible, typically less than 1.25 cc reduces the risk of balloon rupture. Passive deflation should be used to avoid damage to the balloon. The balloon should be completely deflated to avoid a continuous wedge, which could lead to pulmonary infarction. The balloon should be inflated only long enough to obtain a stable reading.
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