Which of the following is a common sign of ART failure?

• A. Rising viral load after suppression
• B. Decreasing viral load
• C. Stable CD4 count
• D. Improved weight and well-being

Answer: (A)

The key concept is that successful ART aims to suppress HIV RNA to undetectable levels. When viral load had been suppressed and then starts to rise again, that “viral rebound” is a common sign that ART is no longer effectively controlling the virus. This situation flags ART failure and prompts a reassessment of the regimen.

Rising viral load after suppression can happen for several reasons, most commonly issues with adherence—missing doses allows the virus to replicate again. Other causes include drug interactions or metabolism that lower drug levels, or the virus developing resistance to the medications being used. When this pattern is seen, the first step is to assess adherence and ensure the patient is taking the meds consistently. If adherence is confirmed, repeat a viral load to confirm the rise, and consider resistance testing and a regimen change based on results and guidelines.

In contrast, a decreasing viral load indicates the ART is working, not failing. A stable CD4 count may occur as the immune system recovers with suppression but is not by itself a definitive sign of failure. Improved weight and well-being reflect better overall health with effective treatment, not failure.