
Influenza A/B + SARS-CoV-2 + RSV Ag Combo Rapid Test Device
LARKSOIS Pharma Influenza A/B + SARS-CoV-2 + RSV Ag Combo Rapid Test Device is a rapid diagnostic test designed for qualitative detection of Influenza A antigen, Influenza B antigen, SARS-CoV-2 antigen, and RSV antigen in nasal or nasopharyngeal swab specimens. This combo rapid test supports fast respiratory infection screening in hospitals, clinics, laboratories, fever clinics, emergency departments, public health programs, and professional point-of-care settings.
Description
Influenza A+B/SARS-CoV-2/RSV Ag combo Rapid Test Device (Nasopharyngeal swabs/Nasal swab)
Category
INFECTIOUS DISEASE
Method
Rapid Test
Cut-Off
N/A
Introduction
- The Influenza A/B + SARS-CoV-2 + RSV Ag Combo Rapid Test Device is a professional infectious disease rapid test designed for qualitative detection of four major respiratory viral antigens.
- This rapid combo test is suitable for nasal swab and nasopharyngeal swab specimens.
- The device supports fast screening of suspected respiratory infections where symptoms may overlap.
- Results should be interpreted with symptoms, clinical history, local outbreak activity, and confirmatory testing when required.
What Is Covid Ag Test
Respiratory combo testing helps detect multiple respiratory viruses from one sample workflow. Influenza A, Influenza B, SARS-CoV-2, and RSV can cause similar symptoms such as fever, cough, sore throat, body ache, headache, fatigue, chills, and breathing discomfort.
Importance
- Rapid combo testing helps healthcare professionals screen for multiple respiratory infections quickly.
- Influenza, COVID-19, and RSV symptoms can overlap, making differential screening important.
- Fast detection may support patient triage, infection-control planning, and timely clinical decisions.
- This combo format can improve workflow efficiency during seasonal outbreaks and respiratory infection surges.
Intended Use
The combo rapid test by LARKSOIS Pharma may be used in professional diagnostic and respiratory infection screening environments.
Applications
- Hospitals and clinics
- Emergency departments
- Diagnostic laboratories
- Fever clinics
- Respiratory infection screening programs
- Public health outbreak monitoring
- School, workplace, and travel-related health screening
- Professional point-of-care testing
- International diagnostic distribution
How It Works
- The combo rapid test works on lateral flow immunochromatographic assay technology.
- After sample collection, the nasal or nasopharyngeal swab is mixed with extraction buffer.
- The prepared specimen is added to the test cassette.
- If Influenza A, Influenza B, SARS-CoV-2, or RSV antigen is present, the corresponding visible test line appears.
- The control line confirms correct sample migration and valid test performance.
Method
The Influenza A/B + SARS-CoV-2 + RSV Ag Combo Rapid Test Device uses rapid lateral flow immunochromatographic technology for qualitative detection of respiratory viral antigens in nasal or nasopharyngeal swab specimens.
Benefits
- Detects Influenza A antigen
- Detects Influenza B antigen
- Detects SARS-CoV-2 antigen
- Detects RSV antigen
- Rapid visual result
- Uses nasal or nasopharyngeal swab specimens
- No complex instrument required
- Professional point-of-care diagnostic application
Specimen
The combo rapid test device is designed for nasal swab and nasopharyngeal swab specimens. Correct specimen collection is important because sample quality, timing, and procedure can affect test performance.
Guidance
- Use approved nasal or nasopharyngeal swab specimens only
- Collect specimens according to the product insert
- Use clean and suitable swab collection materials
- Avoid contaminated or improperly collected samples
- Mix the swab specimen with extraction buffer correctly
- Apply the prepared sample properly to the test cassette
- Read results only within the recommended time window
- Handle respiratory specimens according to laboratory safety procedures
Note
Specimen collection, extraction, testing, timing, and storage should always follow the official LARKSOIS Pharma kit insert.
Cut Off
The Influenza A/B + SARS-CoV-2 + RSV Ag Combo Rapid Test Device by LARKSOIS Pharma is designed for qualitative detection of Influenza A antigen, Influenza B antigen, SARS-CoV-2 antigen, and RSV antigen in respiratory swab specimens.
Clinical Importance
- A positive result means one or more target respiratory viral antigens have been detected.
- Rapid combo screening may support timely patient management and infection-control measures.
- A negative result does not completely rule out respiratory infection.
- If symptoms continue or clinical suspicion remains high, molecular testing such as PCR may be recommended.
Limitations
Rapid antigen combo tests provide fast screening support, but molecular methods are generally more sensitive. The Influenza A/B + SARS-CoV-2 + RSV Ag Combo Rapid Test Device should be used as a professional screening aid and not as the only basis for diagnosis or treatment decisions.
Instructions
- For professional in-vitro diagnostic use only
- Use approved respiratory specimens only
- Improper specimen collection may affect results
- False negative or false positive results may occur
- Negative results may require confirmation when symptoms strongly suggest infection
- PCR testing may be recommended when clinical suspicion remains high
- Read results only within the recommended time
- Follow the official product insert carefully
Key Features
Instructions
- Detects Influenza A antigen
- Detects Influenza B antigen
- Detects SARS-CoV-2 antigen
- Detects RSV antigen
- Rapid visual result
- Uses nasal or nasopharyngeal swab specimens
- No complex instrument required
- Supports respiratory outbreak screening
Note
The Influenza A/B + SARS-CoV-2 + RSV Ag Combo Rapid Test Device by LARKSOIS Pharma is designed for practical use, rapid screening, and professional healthcare supply requirements.
Procedure
Steps
- Bring the test device, specimen, and extraction buffer to room temperature
- Collect the nasal or nasopharyngeal swab specimen according to instructions
- Place the swab into the extraction buffer tube
- Mix the sample properly as instructed in the product insert
- Remove the test cassette from the sealed pouch
- Apply the prepared specimen to the sample well
- Wait for the recommended reaction time
- Read the test and control lines within the valid time window
- Dispose of used materials according to laboratory safety procedures
Note
Testing should be performed by trained healthcare professionals according to the official LARKSOIS Pharma product insert.
Result Interpretation
Positive
A positive result means Influenza A antigen, Influenza B antigen, SARS-CoV-2 antigen, and/or RSV antigen has been detected. Results should be interpreted with symptoms, exposure history, and local outbreak activity.
Negative
A negative result means target antigens were not detected at the test’s detectable level. If symptoms continue or clinical suspicion remains high, molecular testing such as PCR may still be recommended.
Invalid
If the control line does not appear, the test result is invalid. Repeat testing with a fresh test device is required.
Storage
Instructions
- Store the combo rapid test device according to the product label and insert
- Store in a cool and dry place
- Keep sealed until use
- Protect from heat, sunlight, and moisture
- Do not freeze unless specified
- Do not use expired kits
- Use immediately after opening the pouch
- Follow all instructions for use carefully
Precautions
Instructions
- For professional in-vitro diagnostic use only
- Handle respiratory specimens carefully
- Wear gloves and appropriate protective equipment during testing
- Do not reuse the test cassette
- Avoid specimen contamination
- Do not use damaged or expired kits
- Read results only within the recommended time
- Interpret results with clinical findings and local outbreak activity
Why Choose
LARKSOIS Pharma provides globally suitable diagnostic products for hospitals, laboratories, clinics, healthcare procurement agencies, and medical distributors. The Influenza A/B + SARS-CoV-2 + RSV Ag Combo Rapid Test Device is designed for fast, accessible, and practical respiratory infection screening.
Advantages
- International infectious disease rapid test portfolio
- Reliable respiratory infection screening support
- Suitable for hospitals, clinics, and laboratories
- Distributor-friendly product support
- Professional healthcare quality standards
- Practical point-of-care diagnostic format
- Accessible combo respiratory screening solution
Frequently Asked Questions
What is an Influenza A/B + SARS-CoV-2 + RSV combo rapid test?+-
It is a rapid antigen combo test designed to detect Influenza A, Influenza B, SARS-CoV-2, and RSV antigens from nasal or nasopharyngeal swab specimens.
What type of sample is used for this combo test?+-
This combo rapid test commonly uses nasal swab or nasopharyngeal swab specimens, depending on the product insert and testing protocol.
Can this combo test replace PCR testing?+-
No. Rapid antigen combo tests are useful for fast screening, but PCR or other molecular testing may be recommended when clinical suspicion remains high.
When is the best time to use a respiratory antigen combo test?+-
Rapid antigen testing generally performs best during the early days of symptoms when viral antigen levels are higher.
Can a negative combo rapid test rule out infection?+-
No. A negative result does not completely rule out infection. If symptoms continue or exposure risk is high, further medical evaluation or molecular testing may be needed.
