Can someone tell me why my RDW-SW would be low, it states that normal is 38.4-53.1 and mine is 36, I am not familiar with this and would like to know what this means, also my basophils are low, my potassium is borderline it states normal is 3.5-5.5 and mine are 3.5, mcv is 83 and normal is 80 to 100.6, I just like to know what all this means, because I can not get very good answers if this is something that I should worry about. They are testing me for Lupus and Rheumatoid arthritis and some of the test are pending, but I would like to know what these few mean at this time.

Thanks,