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.
According to the National Institutes of Health, a result between 70 to 100 mg/dL is considered normal for a fasting glucose test. Glucose levels between 100 to 125 mg/dL may indicate prediabetes or a risk of type 2 diabetes.ccording to the National Institutes of Health, a result between 70 to 100 mg/dL is considered normal for a fasting glucose test. Glucose levels between 100 to 125 mg/dL may indicate prediabetes or a risk of type 2 diabetes.