What is the first step a nurse should take when preparing to care for an infant with severe dehydration?

The initial step in preparing to care for an infant with severe dehydration is to initiate IV fluid therapy. This is crucial because severe dehydration can lead to significant electrolyte imbalances and impaired organ function in infants. Administering fluids intravenously allows for rapid rehydration and restoration of electrolyte balance, which is essential for stabilizing the infant's condition.

In cases of severe dehydration, time is of the essence. IV fluid therapy can quickly bring relief and improve physiological function, preventing complications such as shock or critical organ failure. Other assessments, while important, are secondary to the immediate need to restore fluid balance.

For instance, conducting a weight assessment, although beneficial for gauging the severity of dehydration and future treatment planning, does not address the urgent needs of the patient at that moment. Similarly, while medications may be necessary later, they cannot replace the immediate necessity for fluid replenishment in a severely dehydrated infant. Requesting a consultation with a specialist is also important but not the immediate priority when life-threatening hydration issues are at stake.