please help

my father 69 year old.he has been detected with tri vascular desease 2 years back. presently till september 2007 he was feeling ok.on 20th sept he had a chest pain with sweting and admitted in the hospital
on examination he is no pallor /cyanosis/clubbing/icteurus
HR 60min
RS CLEAR
P/A soft no organomegaly
CNS conscious oriented
ECG NSR,
mild LV disfunction LVEF 42 TO 46% RWMA .diastolic disfunction trivial AR trivial MR.
course in hospital
   he was thromboised with STK and further managed with antiplatelets,anticoagulants .Patiant was stable on discharge.
Now after discharging from hospital he has cough
    He is not feeling active.
    he was detected with high blood sugar at the hospital AC 138/150/107
   he is now taking semi daonil 2.5mg.
  Doctor has not suggested anything purticular
   Kindly advise me what all steps as a son to take care