Blood count terms
Rdw means red cell distribution width, which is the range of values for the width of your red blood cells.
A higher number could mean that you are making lots more red cells for some reason.
Mch mean mean (or average) red cell hemoglobin, which is the amount of hemoglobin in each red blood cell. If it's low, this means that your cells aren't carrying as much hemoglobin as they should.