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.
What is a corrected reticulocyte count (CRC), also called reticulocyte index (RI)? When an individual has anemia (the number of red blood cells (RBCs), hemoglobin and hematocrit are low), the percentage of reticulocytes may appear high compared to the overall number of RBCs.