ARDMS Ultrasound Physics & Instrumentation Practice Exam 2025 - Free Ultrasound Practice Questions and Study Guide

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What type of transducer is typically used for obstetric ultrasound?

Linear array transducer

Phased array transducer

Curved array transducer

The curved array transducer is typically used for obstetric ultrasound because of its ability to provide a wide field of view that is essential for visualizing the fetus in utero. This type of transducer features a curved design allowing for acutely angled ultrasound beams that can cover larger abdominal areas, enabling effective imaging of developing anatomy in pregnant patients. The lower frequency of these transducers also contributes to deeper penetration, which is crucial for accessing structures positioned farther from the transducer, such as a fetus during different stages of pregnancy.

In obstetric imaging, the depth and breadth of the field provided by a curved array transducer facilitate the assessment of fetal growth, position, and overall health, which is why it is preferred in this medical context.

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Endocavity transducer

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