22 / PRNewswire / -- AdvanDx today announced that it has received FDA 510 ( k ) clearance for a fast , 90 minutes protocol for its E. coli / P. aeruginosa PNA � � FISH � � and EK / P. aeruginosa PNA FISH � � tests . � � The faster protocol reduces the PNA FISH turn-around time from the original 2.5 hours to 90 minutes by reducing PNA probe hybridization from 90 minutes to 30 minutes . � � Clinical validation studies performed at hospitals in the United States demonstrated 100 % equivalence between the 90 minutes protocol and the original PNA FISH protocol , ensuring the faster protocol maintains the very high sensitivity and specificity required versus slower , conventional methods .