Quidel Sofia FIA Test Kits

The Quidel Sofia line brings objective, machine-read results to point-of-care testing, replacing the guesswork of visual reads with fluorescent immunoassay (FIA) technology. Every kit in this collection runs on the Sofia or Sofia 2 Fluorescent Immunoassay Analyzer, which processes the cassette and reports a clear positive or negative — a meaningful advantage for busy physician offices, urgent care clinics, and labs where operator interpretation can introduce variability.

This collection covers the diagnostic panels clinics reach for most. The Sofia Influenza A+B FIA (25 tests, #20218) accepts nasal swab, nasopharyngeal swab, nasal wash, or aspirate samples, giving front-desk flexibility during flu season. The Sofia RSV FIA (25 tests, #20260) supports respiratory syncytial virus detection from nasopharyngeal samples — critical for pediatric and elderly patients. For sore-throat workups, the Sofia Strep A+ FIA (#20274) ships complete with cassettes, reagent tubes and solution, sterile rayon throat swabs, fixed-volume pipettes, and positive and negative control swabs, so a clinic can run a full workflow out of the box. The Sofia hCG FIA (50 tests, #20229) handles reproductive health with a urine sample and comes with 50 individually packaged cassettes and fixed-volume pipettes.

A common question: are these tests interchangeable between analyzers? The Influenza A+B, RSV, and Strep A cassettes are validated for both the original Sofia and the Sofia 2, while every kit includes printer paper, package inserts, and quick-reference instructions to keep documentation and compliance straightforward. Each cassette is individually packaged, which protects reagent integrity and lets you pull only what a given day's patient volume requires.

Explore the full range of Diagnostic Tests to pair these kits with the swabs, controls, and point-of-care supplies your practice runs daily.