Nonfermenting Gram-Negative Rods Isolated from Respiratory Samples from Cystic Fibrosis

Multiple Choice

Nonfermenting gram-negative rods isolated from respiratory samples from cystic fibrosis patients are difficult to identify using commercial systems.Thus,other testing platforms are being used to aid in accurate species identification.Which of the following systems has the advantage of a large curated database of proteomic profiles representative of many microorganisms and can give definitive organism identification within minutes?

A) Cellular fatty acid analysis
B) MALDI-TOF mass spectrometry
C) Multilocus sequence typing
D) Ribotyping of 16S rRNA gene