Continuous Glucose Monitoring for Outpatient Diabetes Management After Hospital Discharge

Inclusion criteria

• Non-pregnant adults, ages greater than or equal to 18 years, admitted to VUMC
• Able to give informed consent
• Hyperglycemia requiring insulin therapy including subcutaneous insulin injection or continuous subcutaneous insulin infusion (patient's own insulin pump) during hospitalization and at the time of discharge
• POC glucose or venous glucose levels in the 24 hours prior to participation need to be 70-350 mg/dL
• Need glucose readings greater than or equal to one time per day
• Mental status and dexterity adequate to use Libre 3 Plus or Dexcom G7 sensors with Libre 3 or Dexcom G7 application on patient's smartphone

Exclusion criteria

• Currently using Libre 3 Plus or Dexcom G7 CGMS during hospitalization or have used Libre 3 Plus or Dexcom G7 CGMS in the past 3 months
• Does not have smartphone compatible with Libre 3 App or Dexcom G7 App
• Received chemotherapy during current hospitalization
• Planning on major surgery within 10-15 days
• Hemodialysis or peritoneal dialysis
• Requiring vasopressors, intubation, sedation, or admission to an intensive care unit
• Vitamin C use of more than 500 milligrams per day
• Hydroxyurea use
• Acetaminophen use of more than 4 grams per day or 1 gram every 6 hours
• Significant pitting edema (3+ or greater) i.e. cirrhosis with ascites, congestive heart failure with edema, nephrotic syndrome, or signs of poor perfusion
• Presentation in diabetic ketoacidosis or hyperosmotic nonketotic state
• Skin allergy to adhesives