A nurse is caring for a client who has HIV. Which of the following laboratory values is the nurse's priority?

Rationale:A. Platelets at 150,000/mm3 are within the lower range of normal but not immediately concerning.B. A positive Western blot test is confirmatory for HIV but is not an immediate concern compared to other lab values.C. A WBC count of 5,000/mm3 is within normal limits and not a primary concern for an HIV-positive client.D. A CD4-T-cell count of 180 cells/mm3 indicates advanced immunosuppression, which is critical to monitor in HIV-positive clients to assess the progression of the disease and the risk for opportunistic infections.