my fatther is 79 and has diabetes since last 40 years has got CABG done 4 year back . March 2010 pathological report tells elevated potassium 6.8 and sodium 149 creatinini 1.5 blood urea probably 61% He is taking Lasix 40 once daily and Urimax once daily besides his heart related drugs like Acitorm 2mg , Nikoran ,Stemlo , Insulin inj , UBiQ etc. How to reduce potassium level HE is taking papaya regularly in fruits only