BMR changes by what % in pregnancy: (A) Rise by 25%, (B) Fall by 25%, (C) Rise by 50%, (D) Fall by 50%
Answer is A. Ans. A. Rise by 25%* During pregnancy glomerular filtration rate increases, which causes increased renal clearance of iodine.* Maternal serum iodine levels fall due to increased renal loss and also due to transplacental shift to the fetus. These cause hyperplasia of the gland.