If you do go ahead, I think it would be imperative that, as you mention, you get your Alhambra tickets with an afternoon time slot to the Nasrid Palace. For comparison, we did such a day trip, but from Nerja (much closer to Granada than is Marbella).
A high reticulocyte count with low RBCs, low hemoglobin, and low hematocrit (anemia) may indicate conditions such as: Bleeding: If an individual bleeds (hemorrhage), then the number of reticulocytes will rise a few days later in an attempt to compensate for the red cell loss.
There are several reasons that a monocyte count could be too high. This is a condition known as monocytosis, and is most often a response to a chronic, pervasive infection and illness. Because of the way that monocytes transform into macrophages, monocytosis also causes an increase in the number of macrophages in the body.