HATTIE YOUNG / SCIENCE PHOTO LIBRARY HATTIE YOUNG / SCIENCE PHOTO LIBRARY
A diabetic carries out a blood glucose test. She is using an Exactech; a drop of blood is placed on a chemically coated strip which activates the digital display of the glucose sensor. This tells her the sugar level in her blood. Diabetes is usually caused by insufficient insulin production by the pancreas. Insulin is a hormone which ensures that the tissues take up glucose from the blood; its absence means that sugar in the blood stream cannot be utilised and is excreted in the urine. Weight loss, thirst, hunger, fatigue, coma and death may occur without insulin replacement therapy.
Model release available. Property release not required.