{"A HLA-B*57:01 genotype test is recommended before prescribing abacavir per the FDA's black box warning regarding the risk of serious hypersensitivity reactions in patients that carry this allele. A HLA-B*57:01 genotype test does not appear to have been ordered for this patient. Please do the following to order the HLA-B*57:01 genotype test (insert dialogue boxes here to order clinical HLA-B test)."}