Heat distribution unit. The Heat Distribution Unit (HDU), also known as a Heat Interface Unit (HIU), provides domestic hot water (DHW) and space heating to properties that are serviced from district heating or centralised boiler plants.
Called hypoglycemia, this deficiency of glucose in the blood is considered critical at, or below, 40 milligrams of glucose per deciliter of blood, or 40 mg/dL. However, this figure must be adjusted individually, as the exact level at which an a person develops symptoms varies.
What should it be? A normal fasting blood glucose target range for an individual without diabetes is 70-100 mg/dL (3.9-5.6 mmol/L). The American Diabetes Association recommends a fasting plasma glucose level of 70â130 mg/dL (3.9-7.2 mmol/L) and after meals less than 180 mg/dL (10 mmol/L). Individuals with hypoglycemic unawareness (limited or no awareness of low blood glucose symptoms) may require a higher target range.