Cesarean Delivery Under Spinal Anesthesia

Eligibility Details: Inclusion Criteria: - Pregnant patients ≥ 36 weeks gestation, for elective Cesarean delivery under neuraxial anesthesia - American Society of Anesthesiologists (ASA) class 2 - Patients ≥ 19 years of age Exclusion Criteria: - Long QT syndrome - Cardiac disease or rhythm abnormalities - Family history of long QT syndrome or abnormal cardiac conduction - Currently taking medication that is known to prolong the QT interval - Women who are high risk for uterine atony as outlined in SOGC - Known allergic reaction or hypersensitivity to Carbetocin or any other oxytocin homologue - Patients who are unable to give informed consent because of a language barrier as the study team only speaks English and will be unable to complete consent process and study procedure appropriately.