CD4 and tuberculosis: Second, urine tests for mycobacterial lipoarabinomannan, in both ELISA and lateral flow assay format, have been assessed in adults with suspected tuberculosis.6, 7, 8 The tests are sensitive in adults with advanced HIV disease but not in HIV-negative adults and HIV-positive adults with CD4 counts higher than 100 cells per L.9The lateral flow assay version of the lipoarabinomannan test might be the first point-of-care test for tuberculosis with diagnostic utility.