My niece is in the custody battle of her life. She is in her third trimester & was ordered to take urine test. The lab said she was diluted due to low creatinine levels(specific gravity was good). My own research says they can't do that on just that one level. I also have found that pregnant woman will have low creatinine levels even after the birth. My problem is I need something from a medical journal or from a government entity stating as much so I can give it to her attorney to present to the judge. Can anyone help plzzzzzzzzz.