Hi. Just 2 days back my father had an issue of short breaths. He went to a hospital and had ECHO test done. Doctor told him that he has 20% heart functioning. He had a High BP (200/120) and then they gave some medicines to bring down the BP. He was admitted in ICU and he was monitored carefully. Next day, his angiography was done which came out clear. Now, he is discharged and given lot of medicines and was given a diet with only intake of 1 liter water. Can you please help me with this as normally what happens in this case..what extra we can do to ensure he recovers quickly and have a long life?