Do you know which of the red blood cell levels were raised? A print out will tell you this.
My levels are a bit raised, teetering on the edge of the top standard range, sometimes fractionally over, sometimes fractionally under, so I researched and came up with these:
MCH (Mean corpuscular haemoglobin) is a calculation of the amount of oxygen-carrying haemoglobin inside your RBCs. High MCH levels can indicate macrocytic anemia, which can be caused by insufficient vitamin B12. Insufficient folic acid can be another cause of macrocytic anemia.
MCV (mean corpuscular volume) could be a vitamin B12 or folate deficiency if raised. Diabetes and thyroidism can elevate MCV.
MCHC - mean corpuscular haemoglobin concentration also mirrors MCV and MCH when an anaemia is present, if it sits towards the high end, this is indicative of B12 or folate deficiency, if it sits towards the the low end, this is indicative of an iron deficiency.
RDW - Red cell distribution width – range is 11 to 15 % although this can vary from lab to lab, the test calculates any change in size of the red blood cells. Along with the MCV, the RDW result if high, usually means a B12/folate deficiency.
Because of that I asked for B12 and folate (folic acid) blood tests, which both came back normal. Quite good, in fact. So I was nowhere nearer, but as my GP has never mentioned these to me, and they have been similar for many years, I put it down to them being normal for me.