In assessment of a fetus with occiput presentation, where should the ultrasound transducer be placed on the abdomen?

• A. Left lower quadrant
• B. Right upper quadrant
• C. Right lower quadrant
• D. Left upper quadrant

Answer: (C)

To assess cephalic presentation with ultrasound, you want an imaging window that lets you see the fetal head near the cervix in the lower uterine segment. Placing the transducer in the right lower quadrant often provides the best acoustic window to visualize the head and spine as the fetus lies head-down, making the occipital bone orientation relative to the pelvis clear. This position helps identify that the presenting part is the head by showing the cranium toward the cervix and the spine in alignment with the pelvis. The other abdominal quadrants are less optimal for this view due to less favorable angles or more intervening structures, which can make identifying the occiput more difficult.