Inclusion Criteria:

• 18 years of age and older.
• Admitted to the hospital in a non-ICU bed or once transferred out of ICU.
• Hospital units from which patients will be recruited:
  • Post critical care unit (step down units);
  • Surgical units: these include units which provide pre- and post-surgical care and/or specialized in certain types of surgery (for example orthopedic surgery, programmed surgeries if the patient will remain in the hospital for at least 48 hours: example complicated hernia);
  • Medical units which provide care for conditions such as stroke, heart conditions, infections (also call general unit or med surg unit).
• Patients admitted to ICU with the following diagnoses will be acceptable to enroll:
  • Neurologic or stroke ICU (NNICU): Patients admitted with ischemic strokes without other critical neurological conditions;
  • Hyperosmolar Hyperglycemic Nonketotic Syndrome (HHNS or HHS) as the primary condition for ICU admission without other critical conditions that warrant ICU admission, or any conditions described in the exclusion criteria;
  • Diabetes Ketoacidosis (DKA) as the primary condition for ICU admission without other critical conditions that warrant ICU admission, or any conditions described in the exclusion criteria.
• Anticipate at least 48 hours of hospital stay.
• On treatment for glucose control.
• Willingness to complete the study.
• Willingness to wear up to 3 CGM systems simultaneously. Two in the abdomen and one on the back of the arm or one on each arm and one on the abdomen.
• Subject and/or caretaker are able to speak, read, and write English.

Exclusion Criteria:

• Presence of extensive skin changes/diseases at sensor wear site(s) that preclude wearing the sensor(s) on normal skin (e.g., extensive psoriasis, recent burns or severe sunburn, extensive eczema, extensive scarring, extensive tattoos, dermatitis herpetiformis).
• Currently in an intensive care unit (ICU) of the following (does not apply to participants placed in an ICU bed due to space issues in the non-ICU areas).
• Different ICUs admissions will be excluded as follow:
  • Psychiatric Intensive Care Unit (PICU);
  • Coronary Intensive Care Unit (CCU);
  • Cardiothoracic Intensive Care Unit (CTU);
  • Severe burn Care Unit;
  • Burn units that are not in severe unit ICU will be accepted.;
  • Adult Medical Intensive Care Unit (MICU), also call regular ICU in some places;
  • Neurosurgical Intensive Care Unit (except patients with diagnoses of ischemic strokes treated with insulin drips);
  • Respiratory Intensive Care Unit;
  • Surgical Intensive Care Unit (SICU);
  • Trauma Intensive Care Unit;
  • Long Term Care ICU (LTC-ICU).
• Patients admitted to ICU with the following diagnoses will be acceptable to enroll per inclusion criteria described above:
  • Neurologic or stroke ICU (NNICU): Patients admitted with ischemic strokes;
  • Hyperosmolar Hyperglycemic Nonketotic Syndrome (HHNS or HHS);
  • Diabetes Ketoacidosis (DKA).

Eligibility last updated 8/13/21. Questions regarding updates should be directed to the study team contact.