Telehealth nursing is a specialized area of nursing practice that has grown in response to the emergence of new technologies and consumer demand for health care services in the community. HealthLinkBC Nursing Services provides symptom triage and health education to residents of British Columbia and Yukon over the phone. Unlike traditional nursing care, telenurses are limited in terms of information they receive from callers. Therefore, there is a need for critical thinking skills to be developed. The purpose of this paper is to describe a participatory approach towards identifying: (1) the factors that affect telehealth nursing practice including critical thinking, and (2) developing a research strategy aimed at identifying the ways in which critical thinking can be supported in a telehealth nursing environment. A HealthLinkBC working group has begun work in developing a definition of critical thinking specific to nursing, identifying future research opportunities and methodologies.