You can have breakfast for a macrosomia. The ultrasound is a three-dimensional or four-dimensional ultrasound that is performed around the 20th to 24th week of pregnancy to check for malformations of important organs in the developing fetus. This ultrasound does not require an empty stomach to be performed, and because the examination requires a careful look at the structural condition of the important fetal organs and requires the cooperation of the fetus in the proper position, it takes longer, and it is usually recommended that the pregnant woman eat before the examination and bring food to eat when she is hungry. If blood tests, such as routine blood tests, liver and kidney functions, glucose tolerance test, etc., are also required on the day of the MRI, it is necessary to take blood on an empty stomach before eating to prepare for the MRI.