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24792 Influenza A and B and Respiratory Syncytial Virus Nucleic Acid Test (NAT)

Influenza A and B and Respiratory Syncytial Virus Nucleic Acid Test (NAT)
Test Code: ABRNAT
Synonyms/Keywords
​Influenza PCR, RSV, Seasonal Flu
Useful For
This is a qualitative PCR test that will identify influenza virus type A, type B and respiratory syncytial virus (RSV). This test does not differentiate between seasonal subtypes of influenza A. Wisconsin public health information related to statewide and regional RSV and influenza activity including circulating subtypes is available at: http://www.slh.wisc.edu/wcln-surveillance/surveillance/virology-surveillance/
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
​No ​Nasopharyngeal swab UTM Universal Viral Transport-BD, M6 Viral Transport, Xpert VTM 1 swab 1 swab 1 swab
Collection Processing Instructions

​Collect appropriate specimen (sterile flocked swab with flexible shaft). Place in pink viral transport medium, braking shaft at breakpoint.  Send to lab on refrigerated.

 For more information on Specimen Collection Media/Swab, see Specimen Transport Pictorial.

Specimen Stability Information
Specimen Type Temperature Time
Nasopharyngeal Swab​​ ​ ​Refrigerate ​72 hours
Frozen ​>72 hours
Rejection Criteria
Specimen on Cotton or Calcium Alginate Tipped Swaps
​Swabs with Wooden Shafts
​Transport Media other than viral transport
​Dry Swabs
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Eau Claire ​Monday through Sunday ​3 hours ​Nucleic Acid Test (NAT); Real-Time RT-PCR
Park Falls ​Monday through Sunday ​3 hours ​Nucleic Acid Test (NAT); Real-Time RT-PCR
​Ladysmith ​Monday through Sunday ​3 hours ​Nucleic Acid Test (NAT); Real-Time RT-PCR
Rice Lake ​Monday through Sunday ​3 hours ​Nucleic Acid Test (NAT); Real-Time RT-PCR
​Marshfield ​Monday through Sunday 3 hours Nucleic Acid Test (NAT); Real-Time RT-PCR  ​
Minocqua​Monday through Sunday​3 hours​Nucleic Acid Test (NAT); Real-Time RT-PCR
​Neillsville​Monday through Sunday​3 hours​Nucleic Acid Test (NAT); Real-Time RT-PCR 
Weston ​Monday through Sunday ​3 hours ​Nucleic Acid Test (NAT); Real-Time RT-PCR
Test Information
Testing should only be considered for patients with moderate to severe respiratory illness including fever and cough or sore throat. Testing is not recommended for patients with mild illness or family members of a person with known seasonal influenza.​
Reference Range Information
Performing Location Reference Range
​Marshfield ​Negative
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
​87502
​87634
Synonyms/Keywords
​Influenza PCR, RSV, Seasonal Flu
Ordering Applications
Ordering Application Description
​Centricity ​Influenza A&B w/RSV NAT (PCR)
​Cerner ​Influenza A and B w/RSV NAT (PCR)
If the ordering application you are looking for is not listed, contact your local laboratory for assistance.
Specimen Requirements
Fasting Required Specimen Type Preferred Container/Tube Acceptable Container/Tube Specimen Volume Specimen Minimum Volume
(allows for 1 repeat)
Pediatric Minimum Volume
(no repeat)
​No ​Nasopharyngeal swab UTM Universal Viral Transport-BD, M6 Viral Transport, Xpert VTM 1 swab 1 swab 1 swab
Collection Processing

​Collect appropriate specimen (sterile flocked swab with flexible shaft). Place in pink viral transport medium, braking shaft at breakpoint.  Send to lab on refrigerated.

 For more information on Specimen Collection Media/Swab, see Specimen Transport Pictorial.

Specimen Stability Information
Specimen Type Temperature Time
Nasopharyngeal Swab​​ ​ ​Refrigerate ​72 hours
Frozen ​>72 hours
Rejection Criteria
Specimen on Cotton or Calcium Alginate Tipped Swaps
​Swabs with Wooden Shafts
​Transport Media other than viral transport
​Dry Swabs
Useful For
This is a qualitative PCR test that will identify influenza virus type A, type B and respiratory syncytial virus (RSV). This test does not differentiate between seasonal subtypes of influenza A. Wisconsin public health information related to statewide and regional RSV and influenza activity including circulating subtypes is available at: http://www.slh.wisc.edu/wcln-surveillance/surveillance/virology-surveillance/
Reference Range Information
Performing Location Reference Range
​Marshfield ​Negative
For more information visit:
Performing Laboratory Information
Performing Location Day(s) Test Performed Analytical Time Methodology/Instrumentation
​Eau Claire ​Monday through Sunday ​3 hours ​Nucleic Acid Test (NAT); Real-Time RT-PCR
Park Falls ​Monday through Sunday ​3 hours ​Nucleic Acid Test (NAT); Real-Time RT-PCR
​Ladysmith ​Monday through Sunday ​3 hours ​Nucleic Acid Test (NAT); Real-Time RT-PCR
Rice Lake ​Monday through Sunday ​3 hours ​Nucleic Acid Test (NAT); Real-Time RT-PCR
​Marshfield ​Monday through Sunday 3 hours Nucleic Acid Test (NAT); Real-Time RT-PCR  ​
Minocqua​Monday through Sunday​3 hours​Nucleic Acid Test (NAT); Real-Time RT-PCR
​Neillsville​Monday through Sunday​3 hours​Nucleic Acid Test (NAT); Real-Time RT-PCR 
Weston ​Monday through Sunday ​3 hours ​Nucleic Acid Test (NAT); Real-Time RT-PCR
For billing questions, see Contacts
Outreach CPTs
CPT Modifier
(if needed)
Quantity Description Comments
​87502
​87634
For most current information refer to the Marshfield Laboratory online reference manual.