SRCAST-Diagnosis: understanding how different members of a patient-care team interact with clinical decision support system.

A clinical diagnosis is a decision-making process that consists of not only the final diagnostic decision but also a series of information seeking decisions. Members of a patient-care team such as nurses, residents, and attending physicians play different roles but work collaboratively during this process. To better support the different roles and their collaborations during this process, we need to understand how different users interact with decision support systems. We developed SRCAST-Diagnosis to test how nurses, residents, and attending physicians use decision support system to improve diagnosis accuracy and resource efficiency. Nurses seemed more willing to take recommendations and therefore saved a greater amount of lab resources, but made less improvements on diagnosis accuracy. Attending physicians appeared more cautious in accepting SRCAST-Diagnosis recommendations. These findings will provide useful information for future CDSS design to support better collaborations of team members.