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Test Code LAB9024 Influenza A&B PCR, Ira ONLY

Performing Lab

Ira Davenport Memorial Hospital

Ordering Recommendations

Rapid and accurate detection of Influnza A&B in a single test.

Collect

Nasal swab: Only use the swab provided in the collection kit.
Nasopharyngeal swab: Only use the swab provided in the collection kit.

Collection Instructions

Nasal swab: MUST use the swab in the collection kit. Carefully insert the swab into the nostril exhibiting the most visible drainage, or the nostril that is most congested if drainage is not visible. Using gentle rotation, push the swab until resistance is met at the level of the turbinates (less than one inch into the nostril). Rotate  the swab several times against the nasal wall then slowly remove from the nostril.

Nasopharyngeal swab: MUST use the swab in the collection kit. Carefully insert the swab into the nostril exhibiting the most visible drainage, or the nostril that is most congested if drainage is not visible. Pass the swab directly backwards without tipping the swab head up or down. The nasal passage runs parallel to the floor, not parallel to the bridge of the nose. Using gentle rotation, insert the swab into the anterior nares parallel to the palate advancing the swab into the nasopharynx, leave in place for a few seconds, and then slowly rotate the swab as it is being withdrawn. To ensure proper collection, the swab should be passed a distance that is halfway of that from the nose to the tip of the ear. This is about half the length of the swab. DO NOT USE FORCE while inserting the swab. The swab should travel smoothly with minimal resistance; if resistance is encountered, withdraw the swab a little bit without taking it out of the nostril. Then elevate the back of the swab and move it forward into the nasopharynx. 

Stability (from collection to initiation)

Dry direct nasopharyngeal swab:

Room Temp 2 hours
Refrigerated 24 hours

Eluted nasopharyngeal swab in saline:

Room temp 8 hours
Refrigerated 24 hours

Storage/Transport Temperature

Room temp or refrigerated.

Synonyms

Flu;Influenza

Reference Interval

Influenza A&B not detected.

Methodology

Isothermal nucleic acid amplification

Start Date

2020

Last Review Date

06/24/2025

7/11/25 AP