Laurendo,
If your gran's diagnosis is AML then I recommend contacting the
Leukemia & Lymphoma Society (LLS) for information, support, and advice. AML is more common than MDS so much is known about it.
AML patients need to know their subtype: M0, M1, M2, M3, M4, M5, M6, M7. Subtypes M0, M1, and M2 are the ones called myeloblastic. Certain chromosome abnormalities, such as the one called "8;21 translocation" in the M2 subtype, are known to be more favorable than others, so you'll know more after her chromosomes are tested.