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.
A reticulocyte count is a blood test that measures how fast red blood cells called reticulocytes are made by the bone marrow and released into the blood. Normal The reticulocyte count is given as the percentage of red blood cells that are reticulocytes (the number of reticulocytes divided by the total number of red blood cells, multiplied by 100).