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.
Prediabetes may be identified by the presence of impaired glucose tolerance (IGT), which is a plasma glucose value of 140 to 199 mg/dL 2 hours after ingesting 75 g of glucose, and/or impaired fasting glucose (IFG), which is a fasting glucose value of 100 to 125 mg/dL (Table 6) (grade b; bEl 2).