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Influenza A+B Ag Rapid Test Strip

Influenza A+B Ag Rapid Test Strip

LARKSOIS Pharma Influenza A+B Ag Rapid Test Strip is a rapid diagnostic strip test designed for the qualitative detection of Influenza A and Influenza B antigens in nasal swab or nasopharyngeal swab specimens. This Influenza A+B Ag Rapid Test Strip supports fast screening of suspected flu cases in hospitals, clinics, diagnostic laboratories, fever clinics, emergency departments, respiratory infection programs, and professional point-of-care settings.

Description

Influenza A+B Ag Rapid Test Strip (Nasopharyngeal swabs/Nasal swab)

Category

INFECTIOUS DISEASE

Method

Rapid Test

Cut-Off

100TCID/ml

Introduction

  • The Influenza A+B Ag Rapid Test Strip is a professional infectious disease rapid test designed for qualitative detection of Influenza A and Influenza B antigens.
  • This rapid strip test is suitable for nasal swab and nasopharyngeal swab specimens.
  • The test supports rapid influenza screening and helps healthcare professionals identify suspected flu cases during seasonal outbreaks.
  • Results should be interpreted with symptoms, exposure history, local influenza activity, and additional testing when clinically required.

What Is Covid Ag Test

Influenza A and Influenza B are major respiratory viruses responsible for seasonal flu outbreaks. Both can cause symptoms such as fever, cough, sore throat, body ache, chills, tiredness, headache, and respiratory discomfort. Influenza A is often associated with larger outbreaks, while Influenza B also contributes significantly to seasonal illness.

Importance

  • Rapid influenza testing helps healthcare professionals identify possible flu infections quickly.
  • Influenza symptoms can overlap with COVID-19, RSV, and other respiratory infections.
  • Rapid antigen screening supports infection-control measures and timely patient management.
  • Testing for both Influenza A and Influenza B in one strip format helps improve workflow efficiency during seasonal outbreaks.

Intended Use

The Influenza A+B Ag Rapid Test Strip by LARKSOIS Pharma may be used in professional diagnostic and respiratory infection screening environments.

Applications

  • Hospitals and clinics
  • Diagnostic laboratories
  • Emergency departments
  • Fever clinics
  • Respiratory infection screening programs
  • Public health outbreak monitoring
  • School and workplace health programs
  • Professional point-of-care testing
  • International diagnostic distribution

How It Works

  • The Influenza A+B Ag Rapid Test Strip works on lateral flow immunochromatographic assay technology.
  • After sample collection, the nasal or nasopharyngeal swab is mixed with extraction buffer.
  • The prepared sample is applied to the rapid test strip.
  • If Influenza A antigen or Influenza B antigen is present at or above the detection level, it reacts with coated antibodies and forms visible test lines.
  • The control line confirms correct sample migration and proper test performance.

Method

The Influenza A+B Ag Rapid Test Strip uses rapid lateral flow immunochromatographic technology for qualitative detection of Influenza A and Influenza B antigens in nasal or nasopharyngeal swab specimens.

Benefits

  • Rapid visual result
  • Detects both Influenza A and Influenza B antigens
  • Uses nasal or nasopharyngeal swab specimens
  • Simple strip testing procedure
  • No complex instrument required
  • Suitable for professional point-of-care testing
  • Supports seasonal flu screening
  • Professional infectious disease diagnostic application

Specimen

The Influenza A+B Ag Rapid Test Strip is designed for nasal swab and nasopharyngeal swab specimens. Proper specimen collection is important because sample quality strongly affects 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 sample with extraction buffer correctly
  • Apply the prepared specimen properly to the strip
  • Read results only within the recommended time window
  • Handle all 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 Ag Rapid Test Strip by LARKSOIS Pharma is designed for qualitative detection of Influenza A and Influenza B antigens in nasal or nasopharyngeal swab specimens. The listed cut-off is 100 TCID/ml, and results should be interpreted with symptoms and clinical findings.

Clinical Importance

  • A positive result means Influenza A antigen or Influenza B antigen has been detected.
  • Rapid detection may support timely patient management and infection-control planning.
  • A negative result does not completely rule out influenza infection.
  • If symptoms strongly suggest flu, molecular testing such as PCR may still be recommended.

Limitations

Rapid influenza antigen tests provide fast screening results, but molecular methods are generally more accurate. The Influenza A+B Ag Rapid Test Strip should be used as a professional screening aid, 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 influenza
  • 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 both Influenza A and Influenza B antigens
  • Uses nasal or nasopharyngeal swab specimens
  • Rapid visual strip result
  • Simple professional testing workflow
  • No complex instrument required
  • Useful for seasonal respiratory infection screening
  • Suitable for hospitals, clinics, and laboratories
  • International-quality product from LARKSOIS Pharma

Note

The Influenza A+B Ag Rapid Test Strip by LARKSOIS Pharma is designed for practical use, rapid screening, and professional healthcare supply requirements.

Procedure

Steps

  • Bring the strip, 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 rapid test strip from the sealed pouch
  • Apply the prepared specimen according to instructions
  • 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 or Influenza B antigen has been detected. Results should be interpreted with symptoms, exposure history, and local influenza activity.

Negative

A negative result means Influenza A or B antigen was not detected at the test’s detectable level. If symptoms strongly suggest flu, molecular testing such as PCR may still be recommended.

Invalid

If the control line does not appear, the result is invalid. Testing should be repeated using a fresh rapid test strip.

Storage

Instructions

  • Store the Influenza A+B Ag Rapid Test Strip 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 protective equipment during testing
  • Do not reuse the rapid test strip
  • Avoid specimen contamination
  • Do not use damaged or expired kits
  • Read results only within the recommended time
  • Interpret results with clinical findings and local influenza activity

Why Choose

LARKSOIS Pharma provides globally suitable diagnostic products for healthcare institutions, laboratories, clinics, procurement agencies, and medical distributors. The Influenza A+B Ag Rapid Test Strip is developed for fast, practical, and accessible influenza screening support.

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 Influenza A and B antigen screening solution

Frequently Asked Questions

Which type of test is most accurate in diagnosing influenza?+

Molecular tests such as PCR are generally the most accurate for diagnosing influenza. Rapid antigen tests provide faster results but may be less sensitive than molecular testing.

What type of sample is used to run rapid influenza tests?+

Rapid influenza tests commonly use respiratory samples such as nasal swabs or nasopharyngeal swabs, depending on the test instructions.

When is the best time to do an influenza test?+

The best time is usually during the first few days after symptoms begin, when viral antigen levels are generally higher.

What is the sensitivity of the rapid diagnostic influenza test?+

Rapid influenza diagnostic tests generally have moderate sensitivity. Performance may vary depending on sample quality, timing after symptom onset, and circulating virus type.

What is the specificity of the rapid test?+

Rapid influenza tests generally have high specificity, meaning positive results are usually reliable when interpreted with symptoms and local influenza activity.