A nurse is assessing a newborn who is breastfed and has a weight loss of 11% at 48 hr after birth. Which of the following findings should the nurse report to the provider?

Choice A rationale Meconium stools are a normal physiological finding in a newborn during the first 24-48 hours of life. This thick, tarry, dark-green stool is composed of intestinal epithelial cells, amniotic fluid, bile, and water, reflecting fetal gastrointestinal tract development and function. Its presence indicates typical bowel activity. Choice B rationale Depressed fontanels indicate dehydration in a newborn. The fontanels are soft spots on a baby's head where the skull bones have not yet fused. When a baby is dehydrated, the fluid volume in the brain decreases, causing the fontanel to appear sunken below the normal contour of the skull, which necessitates immediate medical attention due to potential complications. Choice C rationale Rust-stained urine, also known as "brick dust" urine, in a newborn can indicate dehydration. This discoloration is caused by the excretion of urate crystals, which are a normal metabolic byproduct. However, in concentrated urine, these crystals become more visible, suggesting insufficient fluid intake and requiring further assessment to prevent significant dehydration. Choice D rationale Overlapping suture lines, also known as molding, are a common and expected finding in newborns, especially after vaginal delivery. This temporary reshaping of the fetal skull allows it to pass more easily through the birth canal and typically resolves spontaneously within a few days as the brain grows and fills the cranial cavity.