May be more accurate for the nucleoside analogue and non-nucleoside reverse transcriptase inhibitors but may be less useful for the protease inhibitors which do not always have consistent mutation patterns. Should be on anti-HIV therapies to get meaningful results. Phenotypic Testing PROS Results generally interpretable for all anti-HIV drugs. Should be able to give useful information on cross-resistance. CONS Very complex test.
Results take a little longer to be available.
Should be on anti-HIV therapies to get meaningful results.