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Influenza A/H5 Subtyping, NAA

CPT

87501

Synonyms
  • Avian influenza
  • Bird flu

Test Details

Methodology

Nucleic Acid Amplification

Result Turnaround Time

2 - 4 days

Use

This test detects influenza A/H5 subtype by nucleic acid amplification.
 

Special Instructions

This test currently is not approved for use in New York state.

Specimen Requirements

Limitations

This test detects sequences for influenza A and the H5 subtype. Influenza A/H5 is currently very rarely found in humans in the United States. Results from this test must be correlated with the clinical history, epidemiological data and other data available to the clinician evaluating the patient. Viral and bacterial nucleic acids may persist in vivo independent of organism viability. Detection of organism target(s) does not imply that the corresponding organisms are infectious or are the causative agents for clinical symptoms. The detection of viral and bacterial nucleic acid is dependent upon proper specimen collection, handling, transportation, storage and preparation. Failure to observe proper procedures in any one of these steps can lead to incorrect results. There is a risk of false positive or false negative values resulting from improperly collected, transported or handled specimens. 

This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.

Specimen

Nasopharyngeal swab

Volume

1 swab

Minimum Volume

1 swab

Container

Universal or Viral Transport Media (UTM or VTM)

Storage Instructions

Freeze.

Causes for Rejection

Improper collection; inadequate specimen; improper labeling; specimen leaked in transit; quantity not sufficient for analysis; name discrepancies; specimen exceeding storage requirements; nasal swabs or any other upper respiratory sample other than nasopharyngeal swab in universal or viral transport media; samples submitted in non-approved transport devices

Collection Instructions

Collect NP swab per standard techniques and immediately place swab in 3 mL of UTM or VTM.

Stability Requirements

TemperaturePeriod
Room temperature24 hours
Refrigerated3 days
Frozen14 days
Freeze/thaw cyclesStable x2

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
140111 Influenza A/H5 Subtype, NAA 140108 Influenza A 76078-5
140111 Influenza A/H5 Subtype, NAA 140107 H5 subtype 38272-1
140111 Influenza A/H5 Subtype, NAA 140109 Test Information N/A
Order Code140111
Order Code NameInfluenza A/H5 Subtype, NAA
Order Loinc
Result Code140108
Result Code NameInfluenza A
UofM
Result LOINC76078-5
Order Code140111
Order Code NameInfluenza A/H5 Subtype, NAA
Order Loinc
Result Code140107
Result Code NameH5 subtype
UofM
Result LOINC38272-1
Order Code140111
Order Code NameInfluenza A/H5 Subtype, NAA
Order Loinc
Result Code140109
Result Code NameTest Information
UofM
Result LOINCN/A