Why can't they just do an angiogram, (to test for blockages, etc.)

Why do they have to do a Stress Test first?? and if you can't go on a treadmill, why do they have to put you on the table, inject you with meds to "race your heart", give you tachycardia, etc.etc.??

Can't they just do an angiogram. Wouldn't that tell them what they need to know. Alan's cardio guy told us over 18 months ago (the angiogram is the Gold Standard to test for blockages). So if it's the Gold Standard, why not just proceed to the angiogram part?

See, I just don't get this. Why put people on a treadmill and watch them lose their breath and gasp for air, and then they say: "oh now you need an angiogram"!!!!

Anybody have a clear cut answer for this???

Thanks,
Melody