Final answer:
The nurse should notify the provider of allergy to aspirin before administering hydromorphone for postoperative pain.
Step-by-step explanation:
The nurse should notify the provider of allergy to aspirin before administering hydromorphone for postoperative pain. Hydromorphone belongs to the opioid class of medications, and there is a potential cross-reactivity between opioids and aspirin, which can lead to an allergic reaction. It is important for the nurse to communicate this information to the provider to ensure patient safety and explore alternative pain management options.