The parent of a 4-week-old infant reports that the infant began having forceful vomiting 1 week prior, which has worsened over time. The infant continues to nurse well but is losing weight. A physical examination reveals a 90-g weight loss over the past 2 weeks, dry mucous membranes, and a sunken fontanel. What will the primary care pediatric nurse practitioner do?

Question

Quizplus · Accepted Answer

The infant's weight loss, dry mucous membranes, and sunken fontanel indicate severe dehydration, which cannot be corrected with oral rehydration fluids alone. Serum electrolytes should be obtained to evaluate for electrolyte imbalances, and the infant should be hospitalized for surgical intervention to correct the underlying cause of the vomiting. Choice A is not appropriate as the infant is already losing weight and is dehydrated. Choice C is not appropriate as the dehydration is severe and requires more aggressive treatment. Choice D is not appropriate as the vomiting is likely due to an underlying medical condition, rather than a formula intolerance.

The Parent of a 4-Week-Old Infant Reports That the Infant