Which action is the priority intervention for a patient displaying signs of pyelonephritis and renal calculi?

In the context of a patient exhibiting signs of pyelonephritis and renal calculi, arranging for inpatient admission is crucial as it allows for close monitoring and immediate intervention. Pyelonephritis can lead to severe complications, particularly if the infection is acute or if the renal function is impaired. Inpatient care enables healthcare professionals to manage the patient's symptoms, administer intravenous fluids, antibiotics, and possibly surgical intervention for the renal stones if necessary.

In severe cases, patients may require more intensive treatments that are better suited for a hospital setting. This is particularly important if there are signs of systemic infection, such as fever or changes in vital signs, which warrant a higher level of care. By admitting the patient, the healthcare team can provide a comprehensive approach to manage both the infection and the urinary obstruction that renal calculi can cause.

While diagnostic imaging and symptom management are relevant to the care of this patient, they are secondary to ensuring the patient's stability and addressing any immediate health threats. Therefore, arranging for inpatient admission stands as the priority intervention in this clinical scenario.