Many patients with diabetes need advice on high blood glucose levels, ketosis, or hypoglycaemia and this forms a substantial part of the work of many diabetes teams. Access to specialist advice by phone reduces the risk of these problems progressing to emergency call out and/or hospital admission. This service is commonly unavailable out of hours, when patients at risk would contact on-call GP services, call 111, attend ED, or contact untrained junior medical staff in hospitals (Joint British Diabetes Societies for Inpatient Care Group 2013).
