Final answer:
The nurse should contact the provider and expect a prescription for a normal saline bolus.
Step-by-step explanation:
The nurse should contact the provider and expect a prescription for a normal saline bolus. The patient's urine output of less than 20 mL/hour for the past 2 hours indicates decreased kidney function, also known as oliguria. This, along with the patient's decreased blood pressure and increased pulse rate, suggests possible dehydration or hypovolemia. A normal saline bolus can help restore fluid volume and improve kidney function.