ARDMS (American Registry for Diagnostic Medical Sonography) Practice Test

What does the term "fetal biometry" include?

1. Measurements of the mother's health

2. Measurements to assess placental position

3. Measurements of the fetus to assess growth and development

4. Assessment of the fetal heart rate

The correct answer is: Measurements of the fetus to assess growth and development

Fetal biometry specifically refers to the collection of measurements of the fetus that are utilized to assess its growth and development. This process is crucial in monitoring the well-being of the fetus during pregnancy, as it helps healthcare providers evaluate whether the fetus is growing at an appropriate rate for its gestational age. Common biometric parameters include measurements of the biparietal diameter, head circumference, abdominal circumference, and femur length, which collectively aid in estimating fetal weight and development milestones. The other options, while related to aspects of prenatal care, do not pertain directly to fetal biometry. For instance, measurements of the mother's health focus on maternal well-being and factors affecting the pregnancy, while assessing placental position relates to placental health and placement rather than the fetus itself. Lastly, evaluating fetal heart rate is crucial for monitoring fetal health but does not involve measuring physical dimensions of the fetus.