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800-826-3616 www.peacehealthlabs.org
PEACEHEALTH LABORATORIES
A L E R T
WHAT’S NEW? Effective immediately, rapid immunodiagnostic (antigen) tests (65090 and 65200) are discontin-ued at the Springfield, Oregon laboratory. See table on reverse for complete information.
WHY THE CHANGE?Although the turnaround time for rapid immunodiagnostic testing is short, the sensitivity is generally low for most commercial products. Influenza and RSV rapid immunodiagnostic tests have low sensitivity in elderly patients and poor specificity when the prevalence of virus is low.
Negative rapid immunodiagnostic test results should not be used to rule out an influenza or RSV infection in any patient. Alternative test-ing with better performance characteristics will continue to remain available.
WHAT’S BETTER?DFA testing is intended to replace rapid immuno-diagnostic testing due to its similar turnaround time (90th percentile TAT during 2012/2013 respiratory virus season was 2 hours) and supe-rior accuracy.
Individual PCR testing for Influenza A&B (58228 Influenza A/Influenza B PCR Panel) and RSV (58222 Respiratory Syncytial Virus (RSV) PCR) may be obtained in addition to a larger respiratory virus panel that also includes rhino- virus, human metapneumovirus, adenovirus and parainfluenza viruses 1-3 (58370 Respiratory Virus Panel by PCR).
WHAT STAYS THE SAME?Collection method: nasopharyngeal swab, nasal aspirate, nasal wash or nasal swab. Turnaround time: same day as tested.
DFA Replaces Influenza and RSV Rapid Immunodiagnostic Testing
July 24, 2013 – Oregon
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Orders received for . . .
will be changed to the following, at an additional charge.
Rapid Influenza A and B immunodiag-nostic testing (65090)
Influenza A and B testing by DFA (58387)
Rapid Respiratory Syncytial Virus (RSV) immunodiagnostic testing (65200)
Respiratory Syncytial Virus (RSV) and human Metapneumo-virus (MPV) testing by DFA (58391)
800-826-3616 www.peacehealthlabs.org
Discontinued Rapid Immunodiagnostic Testing
Unit Code Test Name Viruses Sensitivity
65090 Influenza A and B Antigen, Rapid
Influenza A and B Lowest
65200 Respiratory Syncytial Virus (RSV) Antigen Detection
RSV Lowest
More Sensitive DFA Testing Remains Available
Unit Code Test Name Viruses Sensitivity
58387 Influenza A and B, DFA Influenza A and B Moderate
58391 Respiratory Syncytial Virus (RSV) and Metapneumovirus (MPV), DFA
RSV and Metapneumovirus
Moderate
58389 Influenza A&B, Respi-ratory Syncytial Virus (RSV) and Metapneu-movirus (MPV) by DFA
Influenza A and B, RSV and MPV
Moderate
58380 Respiratory Viruses Panel by DFA
Influenza A and B, RSV MPV, Parainfluenza and Adenovirus
Moderate
QUESTIONS?Robert Liao, PhD, D(ABMM) Director, Microbiology & Molecular Diagnostics Y 541-743-4798 Y 800-826-3616 ext. 4798 [email protected]
Vern Ash, MT(ASCP) Senior Clinical Scientist, Molecular Diagnostics, Infectious Disease, Virology and Serology Y 541-687-2134 ext. 8093 Y 800-826-3616 ext. 8093 [email protected]
