<prompt> A new born can lose up to ___ of birth weight in the first week of life:6-May10-Aug15-Dec15  <response>: Ans. B. 8-10Normally babies lose 8-10 of weight in the first week of life which is regained by 7-10 days of age. Subsequently there should be a gain of 20-40gramsday.This weight loss occurs due to excessive fluid loss. 