What is the priority nursing intervention for a child with infectious gastroenteritis upon admission?

Starting an IV line as prescribed is the priority nursing intervention for a child with infectious gastroenteritis upon admission. This is because one of the most significant risks associated with gastroenteritis, especially in children, is dehydration due to loss of fluids from diarrhea and vomiting. Establishing intravenous access allows for the rapid administration of fluids and electrolytes to correct dehydration quickly and effectively. This intervention can also facilitate the administration of necessary medications if the child’s condition requires them.

In contrast, while administering antiemetics, providing oral electrolyte solutions, and obtaining a stool culture are important aspects of care, they may not address the immediate risk of dehydration as effectively as starting an IV line. For instance, oral rehydration solutions may be contraindicated in certain cases, especially if the child is unable to tolerate oral intake due to significant vomiting. Obtaining a stool culture, while valuable for diagnosis, does not have the urgency that fluid resuscitation does in acute scenarios. Therefore, obtaining intravenous access to provide necessary fluids is crucial in managing a child with infectious gastroenteritis upon admission.