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.
1 A blood sugar level from 100 to 125 mg/dL (5.6 to 6.9 mmol/L) is considered prediabetes. 2  This is sometimes referred to as impaired fasting glucose (IFG). 3  A blood sugar level of 126 mg/dL (7.0 mmol/L) or higher may indicate diabetes mellitus. blood sugar level of 200 mg/dL (11.1 mmol/L) or higher may indicate diabetes mellitus. If your blood sugar level is normal, your doctor may recommend a screening test every three years. If you have prediabetes, further testing may be needed.