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Nasopharyngeal (NP) swabs or nasal washes/aspirates
1 swab or 1ml nasal aspirate
Use fresh NP swabs and nasal washes for best test performance. Nasal washes, are the specimen of choice (collected by respiratory), but NP swabs are acceptable. • NP Swabs: Use sterile polyester, rayon, foam or cotton flexible shaft NP swabs to collect NP sample. Perform test within one hour of collection. (Do Not use Calcium Alginate Swabs.) • Nasal Washes: Collect nasal washes in sterile containers (urine containers).
Inadequate specimen collection or low levels of virus shedding may result in suboptimal performance and may yield false negative results.
Specimen Processing Instructions
Room temperature or Refrigerated
• Swab samples can be held at room temperature for 1 hour before testing. • Washes can be held at room temperature for up to 4 hours, or refrigerated for up to 24 hours, before testing.
• Swabs in gel • Calcium alginate swabs
Immunochromatographic Membrane assay
Daily, Monday - Sunday
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