Unknown Testing of HLA-B*57:01 is recommended prior to the initiation of this anti-retroviral agent A Atazanavir B Nelfinavir C Raltegravir D Abacavir 💡 Explanation Testing of HLA-B*57:01 is recommended prior to the initiation of this anti-retroviral agent ✓ Correct Answer: D. Abacavir