Influenza A and B, Real-time RT-PCR

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CPT Code:


Test Type: NP swab, nasal swab, throat swab, or combined swab
Stability Time:




7 days


7 days

Freeze/thaw cycles

Stable x2


Confirm presence of influenza A or influenza B.

Collection Details:

Patient Preparation:

Patients should be instructed and guided to hold their head back at a 45 degree angle to facilitate passage of the swab through the nares and into the nasopharnyx.

Collection Instructions:

Viral, Chlamydia, or Mycoplasma culture transport provided by LabCorp or other appropriate transport medium.

Specimen should be collected during acute phase of the disease, ideally within 24 hours of onset of symptoms. Guide the flexible (ideally a flocked rather than wound) swab into the contour of the nares and into the nasopharynx. Leave in place 15 to 30 seconds, rotate and remove. Place swab in viral transport.

Throat swab: Carefully rub the posterior nasopharynx with a dry sterile swab (preferably the "flocked swab"). Avoid touching the tongue or buccal mucosa. Place swab in viral transport.