My 38 Years Sister Weighs 62 Kg. Her Recent Blood

My 38 years sister weighs 62 kg. Her recent blood pressure report reads 130/80 mmHg. . Fearing a heart problem, we got various tests done and the treadmill stress test reported: normal B response, no chest pain, good effort tolerance but the test was positive for inducible ischaemia. What does it mean? Does he need to go for an angiography and then an angioplasty?