<prompt> According to ADA guidelines the diagnosis of diabetes is made when the fasting blood glucose is more than126mgdl100mgdl140mgdl20mgdl  <response>: Refer Robbins page no 1106 Blood glucose is normally maintained in a very narrow range of 70 to 120 mgdL. According to the ADA and WHO, diagnostic criteria for diabetes include: 1. A fasting plasma glucose 126 mgdL, 2. A random plasma glucose 200 mgdL in a patient with classic hyperglycemic signs, as discussed later, 3. 2-hour plasma glucose 200 mgdL during an oral glucose tolerance test OGTT with a loading dose of 75 gm, an 