Page 132 - AACN Essentials of Critical-Care Nursing Pocket Handbook, Second Edition

Remeasure level of transducer air-reference and reposition at midchest level; rezero. Recheck zero and calibration of monitor. Check all connections. in proper sequence. Check air-reference level; reset at midchest and rezero. Review

Treatment Thoroughly flush transducers with IV solution; rezero and turn stopcocks Check position under x-ray and/or 119

Maintain transducer air-reference port at midchest level; rezero after patient Maintain transducer air-reference port at midchest level; recheck and rezero

Prevention position changes. Zero and calibrate monitor properly. Use Luer-Lock stopcocks. Use Luer-Lock stopcocks. Turn stopcocks in proper sequence when two pressures are measured on one transducer. after patient position changes. Establi

Inaccurate Pulmonary Artery Pressure Measurements (continued)

Incorrect air-reference level (above midchest level) Incorrect zeroing and calibration of monitor Loose connection Pressure trapped by improper sequence of stopcock operation Incorrect air-reference level (below midchest level) Migr

Cause

Problem Abnormally low or negative Abnormally high pressure Inappropriate pressure

pressures reading waveform
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