OBJECTIVES Lung cancer is the leading cause of death among cancer patients; therefore, the detection of a pulmonary nodule cannot be ignored. With the increasing prevalence of lung nodule detection, the investigation requires a large number of health care resources. The objective of this study was to measure the health care resources used for the investigation of pulmonary nodules. METHODS A retrospective medical chart review was conducted at the CHUM-Hotel-Dieu in Montreal, Canada. Eligible patients were selected consecutively using the electronic appointment book of the pulmonary clinic, from January 1^st