Maternal Newborn Review (MNR) Practice Exam

Vitamin D plays a crucial role in fetal bone development. It is essential for calcium absorption and metabolism, which are vital for the formation and maintenance of healthy bones. During pregnancy, adequate levels of vitamin D ensure that the developing fetus has sufficient calcium for proper skeletal growth and mineralization. Vitamin D also supports the overall physiological functions necessary for fetal development.

In contrast, vitamin C primarily aids in collagen synthesis and immune function, vitamin A is essential for vision and cell growth but is not directly involved in bone mineralization, and vitamin K is important for blood clotting and bone development but does not play the pivotal role in calcium metabolism that vitamin D does. Thus, the emphasis on vitamin D highlights its specific importance in ensuring that the fetus develops strong and healthy bones.