Endocrine Abstracts

An 82 year old man was admitted to hospital with lethargy, anorexia and back pain. His past medical history included chronic lymphocytic leukaemia and hypertension. Blood tests revealed a serum sodium of 115 mmol/l and potassium of 5.4. His irbesartan was discontinued and sodium rose to 126 prior to discharge. 9 am cortisol was 408 nmol/l. He was readmitted to hospital 6 days later with hyponatraemia (116 mmol/l). A short Synacthen test was performed which showed a flat respon...