Influenza Antigen Test

From Anvita Health Wiki

Contents 1 Clinical-significance 2 Methods 3 Specimen 4 Differential-diagnosis 5 More General Terms 6 Additional Terms 7 References

Clinical-significance

• test will distinguish influenza A & B
• negative test does NOT exclude influenza infection
• specificity = 98% but sensitivity = 54% in adults & 67% in children [2]
• positive test does NOT exclude coinfection with another pathogen
• viral culture suggested for suspected influenza infection when influenza antigen test is negative

Methods

• turn around time 30 minutes

Specimen

• nasal aspirate or wash, naspharyngeal swab (obtain from lab)

Differential-diagnosis

• influenza

More General Terms

• clinical microbiology test

Additional Terms

• avian flu/acute respiratory virus testing
• influenza

References

1. Veterans Administration
2. Chartrand C et al Accuracy of Rapid Influenza Diagnostic Tests: A Meta-analysis Annals of Internal Medicine February 21, 2012, 156(4) <PubMed> PMID: [1] <Internet> [2]

influenza antigen test