<s>[INST] I have recently been discharged from hospital with probable crescendo angina due to some discomfort I experienced last week.  All my tests in hospital were normal.  I had a stent op 18 months ago and have been fine since then.  I am awaiting further appointment for angiogram.  If  diagnosed with unstable angina is it a lifetime diagnosis or can it become stable again? [/INST] Dear, since you have a crescendo angina that is unstable angina, you have to have a coronary angiogram as early as possible. Generally a person with unstable angina is not discharged without an angiogram. But since you have been discharged, and now you are waiting for the angiogram, I would strongly advise you against any activity that would need you to exert. And also take your medicines very religiously.Most of the time unstable angina would not become stable on its own, but definitely it can be reduced by curtailing the level of activity and by taking some particular medicines. All the best. </s>