FCEM2-0069

A 32-year-old patient presents to the emergency department with a 6 cm leg laceration. After assessing the wound, it is determined that suturing under anesthesia is necessary. You intend to supervise one of the medical students in closing the wound. Before beginning the procedure, you have a discussion about the risks associated with local anesthesia. Methemoglobinemia is primarily associated with which type of anesthetic agent?