Blood sugar level In humans, glucose is the primary source of energy, and is critical for normal function, in a number of tissues, particularly the human brain which consumes approximately 60% of blood glucose in fasted, sedentary individuals. Glucose can be transported from the intestines or liver to other tissues in the body via the bloodstream. Cellular glucose uptake is primarily regulated by insulin, a hormone produced in the pancreas. Glucose levels are usually lowest in the morning, before the first meal of the day, and rise after meals for an hour or two by a few millimoles. Blood sugar levels outside the
Organ procurement In the United States in 2016, there were 19,057 kidney transplants, 7,841 liver transplants, 3,191 heart transplants, and 2,327 lung transplants performed. Organ procurement is tightly regulated by United Network for Organ Sharing (UNOS). In the United States, there are a total of 58 Organ Procurement Organizations (OPOs) that are responsible for evaluating the candidacy of deceased donors for organ donation as well as coordinating the procurement of the organs. Each OPO is responsible for a particular geographic region and is under the regulation of the Organ Procurement and Transplantation Network. The United States is divided into 11 geographic regions