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Flu A/B with SARS-CoV-2 and RSV

Alternate Name: RPP_4FLEX

SAL Code:

2424

CPT:

87637

Loinc:

95941-1

Turn Around Time:

24-48 hrs

Setup:

Daily

Department:

Molecular Diagnostics

Performing Laboratory:

Sherman Abrams Laboratory

Methodology:

Polymerase Chain Reaction (PCR)

Specimen Requirements:

Primary Tube:

VTM

Primary Substance:

Nasopharyngeal

Alternate Sample Info:

UTM

Temperature

Period

Stable Ambient:

12 hrs

Stable Fridge:

84 hrs

Clinical Info:

Respiratory viruses like SARS-CoV-2, influenza, and RSV are common causes of acute respiratory infections. COVID-19, associated with SARS-CoV-2, shares symptoms with influenza and RSV, making diagnosis without proper testing challenging. COVID-19, declared a pandemic by the World Health Organization on March 11, 2022, exhibits various symptoms, including fever, cough, difficulty breathing, and loss of taste and smell. RSV is a leading cause of respiratory infections in infants and children, with types A and B causing wintertime epidemics. RSV can lead to severe illness, resulting in numerous hospitalizations for both children and adults. Influenza A and B viruses are primary causes of the flu, with type A usually dominant in wintertime. Symptoms appear one to two days after exposure, and airborne droplets from coughing and sneezing are the primary modes of transmission. RSV and influenza illnesses can be severe in young, elderly, and immunocompromised patients. Swift and accurate testing is crucial for rapid diagnosis and treatment.

Sample Collection:

Collect nasopharyngeal specimens according to standard collection technique using flocked or polyester-tipped swabs and immediately place in 3 mL of UTM-RT® or UVT or equivalent.

Test Limitations:

1. Negative results do not preclude SARS-CoV-2, Influenza A, Influenza B, or RSV infection and patient management decisions should not be made solely on the cobas® Respiratory 4-flex test results, but rather with the consideration of clinical observations, patient history, recent exposures, epidemiological information and other diagnostic information, including laboratory data 2. Reliable outcomes are dependent on proper specimen collection, transportation, storage, and processing. 3. Negative results do not rule out SARS-CoV-2, influenza A virus, influenza B virus, or RSV infections and should not be the sole basis for treatment or management decisions. 4. This test does not distinguish between influenza A subtypes (e.g., H1N1, H3N2) or RSV subgroups (e.g., A or B). 5. A positive result indicates the detection of nucleic acid from the relevant virus. Nucleic acid may persist even after the virus is no longer viable. Please interpret all results in light of patient's clinical presentation, history, and potential recent exposure.

Specimen Handling Instructions:

12 hours room temp or 84 hours refrigerated

Test Information:

Components:

Component Name CPT Loinc
Influenza A 85477-8
Influenza B 85478-6
Respiratory Syncytial Virus (RSV) 85479-4
SARS-CoV-2 94500-6