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  1. Guidance Documents (Medical Devices and Radiation-Emitting Products)

Multiplex Nucleic Acid Assay for Identification of Microorganisms and Resistance Markers from Positive Blood Cultures - Class II Special Controls Guideline for Industry and Food and Drug Administration Staff

Read the Special Controls Document

Issue Date: 05/27/2015

Issued By: Office of Medical Products and Tobacco, Center for Devices and Radiological Health, Office of In Vitro Diagnostics and Radiological Health

This special controls guideline was developed to support the classification of multiplex nucleic acid assay for identification of microorganisms and resistance markers from positive blood cultures devices into class II (special controls). A multiplex nucleic acid assay for identification of microorganisms and resistance markers from positive blood cultures is a qualitative in vitro device intended to simultaneously detect and identify microorganism nucleic acids from blood cultures that test positive by Gram stain or other microbiological stains. The device detects specific nucleic acid sequences for microorganism identification as well as for antimicrobial resistance. This device aids in the diagnosis of bloodstream infections when used in conjunction with other clinical and laboratory findings. However, the device does not replace traditional methods for culture and susceptibility testing.