 - Diagnosed with, or clinically suspected to have, any of the following: dehydrationgastroenteritis, heart or liver failure, portal hypertension with ascites, metabolic disease, SIADH, diabetes insipidus or mellitus, hypertension, adrenal insufficiency, renal failure creatinine100 μmolL 3 years; 150 μmolL 3 years, nephritic or nephrotic syndrome, Kawasaki disease, Sickle cell disease if requiring hyperhydration. 