Reliance on point-of-care (POC) blood glucose measurements for inpatient diabetes management can result in long between-measurement intervals, which contribute to undetected and untreated dysglycemia. The G6 real-time continuous glucose monitoring (RT-CGM) system (Dexcom) allows for remote monitoring. In the hospital, this may reduce the need for close interactions and infectious disease transmission between patients and hospital staff. A man in his mid-60s was admitted to a non-intensive care unit in an acute care facility with a diagnosis of COVID-19. His preadmission type 2 diabetes was managed with twice-daily intermediate-acting insulin and prandial rapid-acting insulin; steroids and POC glucose testing (prandial and bedtime with a FreeStyle Precision Pro meter [Abbott]) were added to this regimen. A G6 was placed on the abdomen and was set to alert the staff to glucose values ≤85 mg/dL or predicted to be <55 mg/dL within 20 minutes. Two hypoglycemic events occurred which triggered three G6 alerts (Figure) . The G6 alerts prompted ad hoc POC measurements that confirmed the hypoglycemic events, prompted appropriate interventions, and documented the patient’s return to euglycemia. All seven G6 readings were within 20 mg/dL or 20% of POC values ≤100 or >100 mg/dL, respectively. Inpatient RT-CGM use can detect existing or impending hypoglycemia and assist in diabetes management.


M.Baker: Other Relationship; Dexcom, Inc. J.Welsh: Employee; Dexcom, Inc.


Dexcom, Inc.

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