Page 133 - AACN Essentials of Critical-Care Nursing Pocket Handbook, Second Edition
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Check system, stopcocks. Eliminate excess tubing. Eliminate excess stopcocks.
Treatment Try different catheter tip position.
Follow routine, systematic steps for pressure measurement. Avoid excessive catheter length in ventricle. Minimize number of stopcocks.
Prevention Use shortest tubing possible ( 3-4 ft).
Inaccurate Pulmonary Artery Pressure Measurements (continued)
Transducer not open to catheter Amplifiers still on cal, zero, or off Excessive catheter movement, particularly in PA Excessive tubing length Excessive stopcocks Abbreviations: PA, pulmonary artery; PAW, pulmonary artery wedge; RV, right vent
Cause Adapted from: Daily E, Schroeder J. Techniques in Bedside Hemodynamic Monitoring. 5th ed. St Louis, MO: CV Mosby; 1994:137.
Problem No pressure available Noise or fling in pressure
waveform
4.19
