Intensive care unit admission

Moribund or not for active treatment

Admission expected to last \<48 hours

Unable or unwilling to give informed consent

Known Type I diabetes mellitus

Patients with reduced awareness of hypoglycaemia including reduced Glasgow coma scale or those taking beta blockers

Patients with renal or hepatic failure at increased risk of hypoglycaemia

Phase II Study of Safety and Feasibility of Intensive Blood Glucose Control With Insulin on Acute Medical Wards