Continuous Glucose Monitoring for Hyperglycemia in Critically Ill Patients

Inclusion Criteria: * Patients age 18-89 * Past medical history of any diabetes mellitus OR patients with at least 1 measured BG of 180 being treated with insulin (subcutaneous or infusion) * Enrollment will occur within 72 hours after being admitted to an ICU if history of diabetes * Enrollment will occur within 72 hours after developing hyperglycemia in ICU if no diabetes Exclusion Criteria: * Pregnant patients * Patients using CGMs in the outpatient setting * Diagnosis of diabetic ketoacidosis (DKA) * Diagnosis of hyperosmolar hyperglycemic state (HHS) * Anticipated to require prone positioning while on insulin therapy * Any contraindications to CGMs based on manufacturer labeling * BG above maximum reading for CGM (e.g. greater than 400 mg/dL) * Receiving medication that could interfere with CGM readings (based on manufacturer specifications) * Receiving any dose of hydroxyurea as this could falsely elevate the sensor readings (if applicable for specific CGM) * Receiving greater than 1,000mg acetaminophen every 6 hours in any form as this could falsely elevate the sensor readings (if applicable for specific CGM)