What could cause a sudden change in the configuration of a pulmonary artery pressure tracing?
a. Transducer is at the right atrial level.
b. Transducer needs to be calibrated.
c. Transducer connection is secure.
d. Pressure bag is present.
ANS: B
Potential causes of changes in a pulmonary artery pressure tracing configuration include the following: The transducer is not at the right atrial level, the transducer is in need of calibration, the transducer connection to the catheter is not secure, the catheter is no longer in proper position, or there is a loss of pressure in the pressure bag. By troubleshooting, the circulating nurse can quickly remedy the problem and apply appropriate interventions. The circulating nurse should be knowledgeable of the patient problems as well as the monitoring problems to maximize patient safety.
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