Which procedure is necessary for a patient showing signs of significant dehydration and hypotension?

Fluid resuscitation is essential for a patient exhibiting signs of significant dehydration and hypotension because it helps restore the body's fluid volume and improve blood pressure. When a patient is dehydrated, they lose vital fluids, which can lead to a decrease in blood volume. This loss can cause hypotension, which is dangerously low blood pressure that can impair circulation and vital organ function.

By administering intravenous fluids during fluid resuscitation, healthcare providers can rapidly increase the volume of circulating blood, thereby improving tissue perfusion and stabilizing blood pressure. This intervention is often critical in emergency settings to prevent shock and other complications associated with severe dehydration.

Other options may not adequately address the immediate needs of a patient with significant dehydration and hypotension. For example, oral rehydration could be a useful strategy for mild to moderate dehydration, but it is generally not sufficient in severe cases or when the patient is in hypotensive crisis, as they may be unable to drink or absorb fluids orally. Blood transfusion is indicated for conditions associated with significant blood loss or anemia, not primarily for dehydration. Intravenous medication can be important in managing specific symptoms or conditions but wouldn’t sufficiently address the fundamental issue of fluid volume in a dehydrated patient.