Hi Kelly,
My Mom got Aranesp or Procrit for her low red counts. But she really felt bad when her white count was down. Didn't make sense to me since I work in a hospital blood bank, but that is how it is.
I would ABSOLUTELY NOT go to the ER for low cell counts--unless it's critically low. At our hospital, they do transfustions at the clinic lots. Or get a direct admit from the doc and go straight to a room. But before anything, call your doctor. We got a direct admit the last time my Mom was admitted and it was wonderful. No ER, no germs etc.
Congratulations on flying through treatments! And I hope you feel better soon.