DMC University Laboratories (DMCUL) is offering a FDA approved Rapid Influenza Diagnostic Test (RIDT) as a primary screen for detection of Influenza A and B. The DMCUL has recently switched from the Remel Xpert RIDT to the Quidel QuickVue RIDT. The sensitivity of the Quidel QuickVue RIDT ranges from 72-94% in detecting seasonal influenza. The sensitivity in detecting novel Influenza A including SwineH1N1 is 69% (1). The Quidel QuickVue RIDT has the specificity in identifying Influenza A and B at 90-99%.
Specimens must be transported only in viral transport medium. DMCUL has validated the use of the Meridian Viral Transport Media. The following media are not compatible (i.e., The BD Universal, M4-3, M4-RT, Copan UTM, Liquid Amies-D, Amies Clear, Modified Stuart’s and gel-based transport media). No other media are compatible for this testing. The following are acceptable specimens:
Specimens should be tested as soon as possible. Test results are available as follows:
Positive results will be called to the physicians.
Please note that a positive Quidel QuickVue RIDT result for Influenza A does not distinguish amongst Influenza A subtypes such as novel Influenza A, and the seasonal Influenza A (H1N1,H3N2). Negative results do not exclude influenza virus infection and further testing may be warranted. Clinicians can contact the following sources for information:
DMCUL Virology Laboratory from 7:00 am – 3:00 pm (313) 993-0710
DMCUL Microbiology Laboratory After 3:00 pm (313) 993-0700