Gestational Ultrasound. In preparing the client for the procedure, the nurse should explain that the primary reason for conducting the ultrasound is to obtain which information?

A. Fetal growth and gestational age. Ultrasound during pregnancy is commonly used to assess fetal growth, development, and gestational age. It allows healthcare providers to monitor the health and progress of the pregnancy, as well as detect any potential issues or abnormalities.B. Lecithin-sphingomyelin ratio. This ratio is typically assessed in amniotic fluid samples to predict fetal lung maturity, but it's not the primary reason for a routine ultrasound during pregnancy.C. Chromosomal abnormalities. While some prenatal screening tests, such as nuchal translucency ultrasound or cell-free DNA testing, can help assess the risk of chromosomal abnormalities, a routine ultrasound is not primarily conducted for this purpose.D. Sex and size of the infant. While ultrasound can reveal the sex of the baby and provide estimates of fetal size, these are secondary to the primary goal of assessing fetal growth and gestational age.