My 87-year-old mother recently received an echocardiogram, which revealed she had high levels of hypertension. But despite this result, her doctor recommended she go through the right heart cath procedure to verify the results. My mother is generally strong and in good shape, although she is on oxygen and sometimes tires easily. My question: Is it advisable--at her age--to proceed with the right heart cath? Or would she be better off treating herself through medications?