my dad recently got chest pain, we admitted in hospital, they done angioplastic,he also having diabetes for past 3 years, now he is taking T.ecosprin 325, T.Clopirces 75mg, T.atocor 40mg, T.Metformin SR 500mg.but his sugar level after post prandrial exceeds to 353 mg. he is taking only one cup of rice in afternoon, how it is possible.