Final answer:
The nurse should report a decreased platelet count as the priority before administering ceftazidime.
Step-by-step explanation:
The priority laboratory finding for the nurse to report to the provider before administering ceftazidime via intermittent IV bolus is Decreased platelet count. Platelets are responsible for blood clotting, and a decreased platelet count can indicate a risk of bleeding. Administering ceftazidime, an antimicrobial drug, in the presence of a decreased platelet count could potentially worsen bleeding complications. It is essential to inform the provider to assess the risk-benefit ratio before proceeding with the medication.