What does an inconclusive TP-PA result mean?
Inconclusive TP-PA – If Reactive results are seen with both sensitized and unsensitized particles, nonspecific agglutination is indicated. The serum may or may not be reactive for T. palladium. In the TDSHS laboratory, specimens that show (> ) reactivity with the unsensitized particles are reported as Inconclusive due to nonspecific agglutination and are then tested by the FTA-ABS.
Inconclusive TP-PA – If Reactive results are seen with both sensitized and unsensitized particles, nonspecific agglutination is indicated. The serum may or may not be reactive for T. palladium. In the TDSHS laboratory, specimens that show (> ±) reactivity with the unsensitized particles are reported as Inconclusive due to nonspecific agglutination and are then tested by the FTA-ABS.
