My RBC fluctuated from 4.59 to 5.14 during the last 12 mo (measured monthly). RDW for the same period stayed in the range of 13.1 - 13.9. All within norm. Other markers (CBD with differential) are within norm as well, besides MCHC which is lower than normal for the whole 12 months (a little lower than 32). Not sure if it’s Rapa to blame.