Quote from DutchgirlRN
CBC also has hemoglobin and hematocrit and other things like MCV (mean cell volume) which tells you how plump the cell is (which means nothing to me)
Increased MCV can sometimes reflect alcoholism or intake of too much alcohol.
About ten years ago during a routine visit to my doc she discussed an increase in my mcv and asked me if I drink frequently or if someone in my family does. I very rarely drink at all now, but back ten years ago I used to have a beer every now and then, but nothing near out of control or alcoholism.
There is alcoholism in my family however and my doc said that frequently there will be a familial increase in mcv if there is alcoholism in the family whether a person consumes alcohol or not. I don't remember any of the mechanisms or details but she said that this increase is also related to the likelihood of someone having problems with alcohol when there is already an alcoholic in the family.
So I am prone to alcoholism according to my doctor and so are my brothers and cousins.
I think this is pretty interesting and worthy of storing as a piece of cbc info in a spare brain cell.