CPNRE Practice Exam 2025 – Comprehensive All-in-One Guide to Ace Your Canadian Practical Nurse Registration!

Colostrum refers to the initial milk produced by a mother after childbirth. This first milk is distinct because it is often yellowish in color and is particularly rich in antibodies, which are crucial for the newborn's immune system. The composition of colostrum is designed to provide essential nutrients and protection against infections, making it vital for the infant during the first few days of life.

In context, the other options do not accurately describe colostrum. The notion of a "first complete meal" pertains to the overall feeding process rather than specifically highlighting the unique properties of colostrum. A formula substitute for infants refers to commercial products designed to replicate breast milk but does not encompass the natural benefits of colostrum. Lastly, a condition where breastfeeding fails is not related to colostrum itself but rather describes potential challenges in the breastfeeding journey. Therefore, option A correctly captures the essence of what colostrum is and its importance during early infancy.