unfortunately there isn't just one iron level so i'm not sure which one you are referring to. there are different tests to measure iron such as serum iron total iron-binding capacity (tibc) transferrin saturation and ferritin (stored iron). healthcare providers usually look at several iron-related lab values to figure out what is going on. it's best to work with your doctor on your results what they mean and if you need further tests. for more on different iron tests see this helpful webmd article.
what does it mean when iron levels are at a 4 in a woman over 50