Continuous Glucose Monitoring for Hyperglycemia in Critically Ill Patients

Continuous glucose monitoring involves a wearable device that measures glucose with a sensor that is inserted subcutaneously. The sensor transmits data to receiving device that displays the glucose values.

Point of care glucose monitoring involves use of an external device that can provide glucose readings at a patient's bedside. These devices require a small blood sample from venous, arterial, or capillary fingerstick blood. The blood sample is analyzed by the device and reports a glucose value within 5 minutes. This method of glucose monitoring is a mainstay and standard of care for most hospitals in the United States.