Which lab value is the priority for a nurse caring for a client who has HIV?

The priority lab value for a nurse caring for a client with HIV is the CD4-T-cell count of 180 cells/mm3. This is crucial because the CD4-T-cell count is an indicator of the immune system's health in individuals with HIV. A low CD4 count, typically below 200 cells/mm3, signifies a progression of the disease and increases the risk for opportunistic infections and complications, which are significant concerns for patients with HIV.

In contrast, while a positive Western blot test confirms an HIV diagnosis, it doesn't provide information about the current immune status or the stage of the disease. Platelet counts within the normal range (such as 150,000/mm3) are important for overall health but do not specifically indicate the status of HIV or its potential complications. Similarly, a normal white blood cell count (WBC 5,000/mm3) reflects general immune function but does not provide specific insights into the impact of HIV on the immune system.

Monitoring the CD4 count allows healthcare providers to assess the effectiveness of antiretroviral therapy and to make timely decisions regarding treatment adjustments in order to improve patient outcomes and prevent potential health crises related to HIV.