Metabolic Toxemia of Late Pregnancy - A Disease Of Malnutrition [Paperback] - Thomas H. Brewer (Author). Available on Amazon.
RDW means there are different size blood cells present. Most commonly due to deficiency states iron deficiency, folate deficiency, or vitamin B12 deficiency or combination of deficiency states.
I would imagine that since you have edema, most of your weight gain is water. You might want to see a cardiologist to see if you have Congestive Heart Failure. It makes you retain water - usually throughout your whole body. He/she will probably put you on Lasix or another diuretic and a potassium supplement. - Meanwhile, drinking green tea can make you pee, pee, pee out some of that water. You can also buy a potassium substitute - but best to get the supplement from the doctor. - You might try going back on your prenatal vitamins since they can help your body heal. (Back in the day we took prenatal vitamins until the baby was 6 months old).