The Twilight Saga of Insulin Administration in Hyperglycemic Patients Undergoing 18F-FDG PET

TO THE EDITOR: Roy et al. recently published a study adopting a standardized protocol of intravenous insulin administration to reduce glycemia in diabetic cancer patients undergoing 18F-FDG PET ( [1][1] ). The authors claimed that the pretest intravenous insulin injection in diabetic patients is a