Test Catalog

Test Id : RSVQL

Respiratory Syncytial Virus, RNA, Qualitative Detection, Varies

Useful For
Suggests clinical disorders or settings where the test may be helpful

Detection of respiratory syncytial virus (RSV) in upper or lower respiratory tract specimens from individuals at risk for RSV infection with flu-like illness

 

See following website on indications and recommendations for testing:

www.cdc.gov/rsv/clinical/index.html#lab

Highlights

This test provides qualitative detection of respiratory syncytial virus (RSV) RNA in upper and lower respiratory tract specimens from at-risk patients with flu-like illness caused by RSV. See Coronavirus Disease 2019 (COVID-19), Influenza, and Respiratory Syncytial Virus Testing Algorithm for the list of individuals at risk for RSV infection.

Testing Algorithm
Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

Method Name
A short description of the method used to perform the test

Real-Time Reverse Transcription Polymerase Chain Reaction (RT-PCR)

NY State Available
Indicates the status of NY State approval and if the test is orderable for NY State clients.

No

Reporting Name
Lists a shorter or abbreviated version of the Published Name for a test

RSV RNA PCR Detect, V

Aliases
Lists additional common names for a test, as an aid in searching

RSV

RSV PCR

Respiratory Syncytial Virus

Testing Algorithm
Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

Specimen Type
Describes the specimen type validated for testing

Varies

Ordering Guidance

Due to the non-specific clinical presentation of coronavirus disease 2019 (COVID-19), influenza A, influenza B, and respiratory syncytial virus infection during the early stages of flu-like illness, concurrent testing for these 4 respiratory tract viral pathogens may be warranted.

 

For the most up-to-date testing recommendations, visit:

www.cdc.gov/coronavirus/2019-ncov/index.html

www.cdc.gov/flu/professionals/diagnosis/index.htm

www.cdc.gov/rsv/clinical/index.html#lab

Shipping Instructions

Ship specimens refrigerated (if less than 72 hours from collection to arrive at Mayo Clinic Laboratories [MCL]) or frozen (if greater or equal to 72 hours from collection to arrive at MCL).

Specimen Required
Defines the optimal specimen required to perform the test and the preferred volume to complete testing

Specimen Type: Nasopharyngeal (NP), oropharyngeal (OP; ie, throat), nasal mid-turbinate, or nares/nasal swab

Supplies:

-Swab, Sterile Polyester, 10 per package (T507)

-Dacron-tipped swab with plastic shaft is acceptable

Container/Tube: Universal transport media, viral transport media, or equivalent (eg, Copan UTM-RT, BD VTM, MicroTest M4, M4-RT, M5)

Note: Media should not contain guanidine thiocyanate (GTC).

For more information on acceptable transport media, see www.fda.gov/medical-devices/emergency-situations-medical-devices/faqs-diagnostic-testing-sars-cov-2

Specimen Volume: Entire specimen with a minimum of 1.5 mL (maximum 3 mL) of transport media.

Collection Instructions:

1. Collect specimen by swabbing back and forth over nasal or pharyngeal mucosa surface to maximize recovery of cells. For more information on OP swab specimen collection, see COVID-19 Oropharyngeal Collection Instructions.

2. NP and OP swab specimens may be combined at collection into a single vial of transport media but only one swab is required for analysis.

3. Swab must be placed into transport medium. Swab shaft should be broken or cut so that there is no obstruction to the sample or pressure on the media container cap.

4. Do not send in glass tubes, vacutainer tubes, or tubes with push caps.

5. Do not overfill with more than 3 mL total volume of media.

 

Specimen Type: Nasopharyngeal aspirate or nasal washings

Container/Tube: Sterile container

Specimen Volume: Minimum of 1.5 mL

Additional Information: Do not aliquot into viral transport media, glass tubes, vacutainer tubes, or tubes with push caps.

 

Specimen Type: Lower respiratory tract

Sources: Bronchoalveolar lavage (BAL) fluid, bronchial washings, endotracheal aspirate, sputum

Container/Tube: Sterile container

Specimen Volume: Minimum of 1.5 mL

Additional Information: Do not aliquot into viral transport media, glass tubes, vacutainer tubes, or tubes with push caps.

Specimen Minimum Volume
Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

See Specimen Required

Reject Due To
Identifies specimen types and conditions that may cause the specimen to be rejected

Calcium alginate-tipped swab, wooden shaft swab, or swab collection tubes containing gel or charcoal additive. Reject
Transport media tubes containing the entire swab (shaft and knob attached) Reject
Glass transport media tubes Reject
Thawed Cold OK; Warm reject

Specimen Stability Information
Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen Type Temperature Time Special Container
Varies Frozen (preferred) 14 days
Refrigerated 72 hours

Useful For
Suggests clinical disorders or settings where the test may be helpful

Detection of respiratory syncytial virus (RSV) in upper or lower respiratory tract specimens from individuals at risk for RSV infection with flu-like illness

 

See following website on indications and recommendations for testing:

www.cdc.gov/rsv/clinical/index.html#lab

Testing Algorithm
Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

Clinical Information
Discusses physiology, pathophysiology, and general clinical aspects, as they relate to a laboratory test

Respiratory syncytial virus (RSV) is an infectious pathogen that infects the human respiratory tract causing an influenza-like illness. Most healthy people spontaneously recover from RSV infection in 1 to 2 weeks, but infection can be severe in infants, young children, and older adults. The virus is the most common cause of bronchiolitis (inflammation of the small airways in the lung) and pneumonia in children under 1 year of age in the United States, and it is recognized increasingly as a frequent cause of respiratory illnesses in older adults.

 

RSV can be detected by polymerase chain reaction in the human upper and lower respiratory tract specimens. Nasopharyngeal swabs or aspirates are the preferred specimen types for detection of RSV RNA. Nasal swabs may not yield as high detection rate as those of nasopharyngeal specimens for molecular detection of RSV RNA. Bronchoalveolar lavage fluid, bronchial washings, endotracheal aspirate, and sputum are suitable specimens for detection of RSV infection of the lower respiratory tract.

Reference Values
Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

Undetected

Interpretation
Provides information to assist in interpretation of the test results

"Detected" result indicates that respiratory syncytial virus (RSV) RNA is present and suggests the presence of RSV infection in the symptomatic patient.

 

"Undetected" result indicates that RSV RNA is absent in the patient’s specimen.

 

An "Inconclusive" result indicates that the presence or absence of RSV RNA in the specimen could not be determined with certainty after repeat testing in the laboratory, possibly due to inhibition of polymerase chain reaction from interfering substances present in the respiratory tract specimen. Submission of a new specimen for testing is recommended when clinically indicated.

Cautions
Discusses conditions that may cause diagnostic confusion, including improper specimen collection and handling, inappropriate test selection, and interfering substances

The sensitivity of the assay is dependent on the timing of the specimen collection (in relation to symptom onset), quality, and type of the specimen submitted for testing. This test should not be performed unless the patient meets clinical and epidemiologic criteria for testing.

 

The test is specific for detection of respiratory syncytial virus (RSV), and positive test results do not exclude the possibility of concurrent infection with other respiratory viruses, such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), influenza A and B viruses.

 

Undetected (ie, negative) results do not rule out RSV infection in patients and should not be used as the sole basis for treatment or other patient management decisions. Results should be correlated with patient's history and clinical presentation. This assay detects both viable (ie, replicating) and nonviable virus.

Clinical Reference
Recommendations for in-depth reading of a clinical nature

1. Mammas IN, Drysdale SB, Rath B, et al: Update on current views and advances on RSV infection. Int J Mol Med. 2020; 46(2):509-520

2. Griffiths C, Drews SJ, Marchant DJ: Respiratory syncytial virus: infection, detection, and new options for prevention and treatment. Clin Microbiol Rev. 2017; 30(1):277-319

3. Hall CB, Simoes EAF, Anderson LJ: Clinical and epidemiologic features of respiratory syncytial virus. Curr Top Microbiol Immunol. 2013; 372:39-57

4. National Center for Immunization and Respiratory Diseases (NCIRD), Division of Viral Diseases, Centers for Disease Control and Prevention (CDC). Respiratory syncytial virus infection (RSV). Updated December 2020. Accessed December 17, 2021. Available at www.cdc.gov/rsv/clinical/index.html

Method Description
Describes how the test is performed and provides a method-specific reference

This assay is a laboratory-developed, TaqMan probe-based, real-time reverse transcription polymerase chain reaction (RT-PCR) assay using a commercially available test designed for qualitative detection of respiratory syncytial virus (RSV) in human upper and lower respiratory tract specimens. Viral target-specific primers and probe are used to amplify and detect the matrix protein (M)-encoding sequence of RSV. Clinical samples undergo automated sample preparation (nucleic acid extraction and purification), during which viral nucleic acid in patient samples and added internal control RNA molecules are simultaneously extracted. Nucleic acid is released by the addition of proteinase and lysis reagent to the sample. The released nucleic acid binds to the silica surface of the added magnetic glass particles. Unbound substances and impurities, such as denatured protein, cellular debris, and potential PCR inhibitors, are removed with subsequent wash steps, and purified nucleic acid is eluted from the magnetic glass particles with elution buffer at elevated temperature. Known positive and negative controls are processed in the same way in each assay run.(Package insert: cobas Influenza A/B & RSV UC: Qualitative nucleic acid test for use on the cobas 6800/8800 Systems. Roche Molecular Systems, Inc; Doc Rev. 1.0, 09/2021)

PDF Report
Indicates whether the report includes an additional document with charts, images or other enriched information

No

Day(s) Performed
Outlines the days the test is performed. This field reflects the day that the sample must be in the testing laboratory to begin the testing process and includes any specimen preparation and processing time before the test is performed. Some tests are listed as continuously performed, which means that assays are performed multiple times during the day.

Monday through Sunday

Report Available
The interval of time (receipt of sample at Mayo Clinic Laboratories to results available) taking into account standard setup days and weekends. The first day is the time that it typically takes for a result to be available. The last day is the time it might take, accounting for any necessary repeated testing.

1 to 3 days

Specimen Retention Time
Outlines the length of time after testing that a specimen is kept in the laboratory before it is discarded

Negative samples: 5 days; Positive samples: 30 days

Performing Laboratory Location
Indicates the location of the laboratory that performs the test

Rochester

Fees
Several factors determine the fee charged to perform a test. Contact your U.S. or International Regional Manager for information about establishing a fee schedule or to learn more about resources to optimize test selection.

  • Authorized users can sign in to Test Prices for detailed fee information.
  • Clients without access to Test Prices can contact Customer Service 24 hours a day, seven days a week.
  • Prospective clients should contact their Regional Manager. For assistance, contact Customer Service.

Test Classification
Provides information regarding the medical device classification for laboratory test kits and reagents. Tests may be classified as cleared or approved by the US Food and Drug Administration (FDA) and used per manufacturer instructions, or as products that do not undergo full FDA review and approval, and are then labeled as an Analyte Specific Reagent (ASR) product.

This test was developed, and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information
Provides guidance in determining the appropriate Current Procedural Terminology (CPT) code(s) information for each test or profile. The listed CPT codes reflect Mayo Clinic Laboratories interpretation of CPT coding requirements. It is the responsibility of each laboratory to determine correct CPT codes to use for billing.

CPT codes are provided by the performing laboratory.

87634

Test Setup Resources

Setup Files
Test setup information contains test file definition details to support order and result interfacing between Mayo Clinic Laboratories and your Laboratory Information System.

Excel | Pdf

Sample Reports
Normal and Abnormal sample reports are provided as references for report appearance.

Normal Reports | Abnormal Reports

SI Sample Reports
International System (SI) of Unit reports are provided for a limited number of tests. These reports are intended for international account use and are only available through MayoLINK accounts that have been defined to receive them.

SI Normal Reports | SI Abnormal Reports