<s>[INST] my son has had a MI @ age 39 has been admitted to cardiac unit and had a BP of 170/105 which they have been unable to lower. The cardiologist feels all was caused by kidney disease. What kidney disease might this be? Kidney and heart blood work showed elevations. [/INST] Hello and Welcome to ‘Ask A Doctor’ service.I have reviewed your query and here is my advice.Yes, kidney diseases are a major cause of secondary hypertension including renal artery stenosis. and nephritic syndrome. Hope I have answered your query. Let me know if I can assist you further.Regards,      Dr. Muhammad Adnan Iqbal </s>