Final answer:
An "undetectable viral load" (Option D) indicates a positive response to HIV treatment, signifying effective suppression of the virus by antiretroviral therapy.
Step-by-step explanation:
A nurse is caring for a client who has HIV. Which of the following findings indicates a positive response to the prescribed HIV treatment? The correct answer is Undetectable viral load.
When treating HIV, a decrease in the patient's viral load is a desired outcome, indicating that the virus is being effectively suppressed by the antiretroviral therapy.
An undetectable viral load is the goal of HIV treatment because it means that the amount of HIV in the blood is so low that it cannot be measured by standard tests.
This reduces the risk of disease progression and the transmission of the virus to others.
Conversely, an increase in the viral load or a decrease in CD4 T cell counts would indicate the treatment is not working, as HIV would be replicating more freely, and the immune system would be further compromised, respectively.
Hence, the correct answer is Option D.