Accuracy of leveling hemodynamic transducer systems

Critically ill patients frequently have invasive catheters placed to monitor hemodynamic pressures and to calculate hemodynamic indices. Correct leveling to the appropriate anatomical structure is critical as the pressure readings guide management of fluids, drug administration, and other interventions. The authors of this study investigated the accuracy with which registered nurses and respiratory technologists were able to level hemodynamic transducers to the phlebostatic axis using visual checks, a carpenter's level, and a laser leveling device. The results indicate that both groups were unable to accurately level transducers with visual checks alone. Use of a leveling tool improved accuracy. The laser level was superior for accuracy and speed and preferred for dexterity required, ease of use and patient safety. The data supports the need for a tool to accurately level hemodynamic transducer systems and suggests that the laser leveling device is the tool of choice.