Is an appointment required for a 4D color ultrasound?

Four-dimensional color ultrasound is an important prenatal examination. To ensure accuracy and thoroughness, it is usually necessary to schedule an appointment in advance. This examination aims to comprehensively evaluate the fetal organs and typically takes about 30 minutes. However, in certain special circumstances, the examination time may be extended. For example, if the fetus is in an unfavorable position, such as lying on its back, the doctor may require additional time to examine the spine. Similarly, when observing fine details such as the nose or lips, if limbs obstruct the view, the pregnant woman may need to walk around or eat something to stimulate fetal movement, thereby obtaining clearer images. Therefore, to ensure a smooth four-dimensional ultrasound examination, it is recommended that pregnant women schedule their appointments in advance and actively follow the doctor's instructions, providing optimal conditions for assessing fetal health.