Objective-This project explored the communication processes associated with poison control center calls.Methods-In this preliminary study, we adapted the Roter Interaction Analysis System to capture staff-caller dialogue. This involved case selection, wherein adherence and non-adherence cases were selected; call linkage to medical records, where case records were linked with voice recordings; and application of Roter Interaction Analysis System to calls.Results-Results indicate that communications are predominantly provider-driven. Patient age and percentage of staff partnership statements were significantly associated with adherence at the 0.05 level. Increases in age were associated with decreases in adherence to recommendations (p < 0.001). Increases in percentage of staff partnership statements (over all staff talk) were associated with increases in adherence (p = 0.013).Conclusion-This line of research could lead to evidence-based guidelines for effective staffcaller communication, increased adherence rates, and improved health outcomes.