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.
Report Abuse. It is diabetes.some patients will use testtube to find it. The blood sugar level is the amount of glucose (sugar) in the blood. It is also known as serum glucose level. It is expressed as millimoles per litre (mmol/l).Normally, blood glucose levels stay within narrow limits throughout the day: 4 to 8mmol/l.But they are higher after meals and usually lowest in the morning.eport Abuse. It is diabetes.some patients will use testtube to find it. The blood sugar level is the amount of glucose (sugar) in the blood. It is also known as serum glucose level. It is expressed as millimoles per litre (mmol/l).