The nurse reviews the most current laboratory results for assigned clients. Which finding is the highest priority for the nurse to report to the health care provider (HCP)?
1. CD4+ cell count of 500/mm3 in a client with oral candidiasis and HIV who is receiving fluconazole orally
2. Hemoglobin A1C (HbA1c) of 6.8% in a client with community-acquired pneumonia and type 2 diabetes who is receiving IV levofloxacin
3. Platelet count of 148,000/mm3 in a client with a venous thrombosis who is receiving a continuous heparin infusion
4. Serum glucose of 68 mg/dL in a client with radiation enteritis who is receiving total parenteral nutrition (TPN)