COPD diagnosis?

My 65 year old grandmother just got diagnosed with COPD so naturally I researched and it’s safe to say I just had a massive panic attack lol. I read online about the different stages, treatments, all of that... my grandmother just got told she had it and the doctor said it wasn’t worth doing the tests, he's just prescribed her some drugs to collect tomorrow and sent her home... that was it, didn’t mention anything about the different stages or didn’t really say much about it, why? I thought they would’ve been more serious about it etc
COPD diagnosis?
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