COVID-19 Ag Rapid Test Device Self Testing Device

The COVID-19 Ag Rapid Test Device Self Testing Device is a rapid lateral flow immunoassay that detects viral antigen from a nasal swab sample. Unlike PCR tests, which detect viral genetic material, antigen tests detect viral proteins. This makes the COVID-19 Ag Rapid Test Device Self Testing Device useful for quick preliminary screening, especially when fast results are needed.

• The COVID-19 Ag Rapid Test Device Self Testing Device works on a lateral flow immunoassay principle.
• After the nasal swab sample is mixed with extraction buffer, the prepared sample is added to the test cassette.
• If SARS-CoV-2 antigen is present, it reacts with specific antibodies on the strip and forms a visible test line.
• The control line confirms that the sample has flowed correctly and the device is working.

The COVID-19 Ag Rapid Test Device Self Testing Device by LARKSOIS Pharma may be used for quick preliminary screening where self-testing is permitted by local rules.

Applications

• Home screening
• Workplace screening
• Travel-related testing
• School and institutional monitoring
• Public health support
• General self-checking
• Clinics and distributor supply
• Bulk buyer requirements
• International diagnostic distribution

• The test works by detecting SARS-CoV-2 antigen in a nasal swab sample.
• The nasal swab is processed in extraction buffer according to the kit insert.
• The prepared sample is added to the sample well of the cassette.
• A visible C line confirms test validity, while a T line indicates SARS-CoV-2 antigen detection.

The COVID-19 Ag Rapid Test Device Self Testing Device uses rapid lateral flow immunoassay technology for qualitative detection of SARS-CoV-2 antigen from nasal swab specimens.

Benefits

• Simple nasal swab self-testing format
• Rapid qualitative detection of SARS-CoV-2 antigen
• No complex instrument required
• Easy visual result reading
• Useful for home and point-of-care screening
• Designed for fast preliminary results
• Supports international public health screening needs
• Convenient for distributors, clinics, institutions, and bulk buyers

The COVID-19 Ag Rapid Test Device Self Testing Device is designed for nasal swab specimens. Correct sample collection is important for reliable test performance.

Guidance

• Use nasal swab specimens only
• Wash or sanitize hands before testing
• Insert the nasal swab gently into the nostril as instructed
• Rotate the swab to collect the sample
• Place the swab into the buffer tube
• Mix the swab properly in the extraction liquid
• Add the required drops to the sample well
• Read the result within the recommended window

Note

Sample collection, extraction, timing, and result reading should always follow the official LARKSOIS Pharma kit insert.

The COVID-19 Ag Rapid Test Device Self Testing Device by LARKSOIS Pharma has a stated cut-off of 100 TCID/ml. This means the test is designed to detect SARS-CoV-2 antigen at or above the validated detection level. Exact performance details should follow the final product insert, technical file, and regulatory documentation.

• The accuracy of a COVID-19 Ag Rapid Test Device Self Testing Device depends on correct nasal sample collection, viral load at the time of testing, and proper procedure.
• Testing during the right infection window is important for reliable antigen detection.
• Proper buffer mixing, correct number of sample drops, and correct result reading time can affect interpretation.
• Rapid antigen tests are useful for quick screening, but a negative result should be interpreted carefully if symptoms or exposure risk are present.

The COVID-19 Ag Rapid Test Device Self Testing Device is intended for qualitative preliminary screening and should not be used as the only basis for medical or public health decisions.

Instructions

• A positive result means SARS-CoV-2 antigen was detected
• A negative result does not completely rule out COVID-19
• False negative results may occur if viral load is low
• Improper nasal sample collection may affect results
• Testing too early or too late may affect antigen detection
• Incorrect buffer mixing may affect test performance
• Reading results too early or too late may affect interpretation
• Repeat testing or laboratory testing may be recommended if symptoms continue

Instructions

• Simple nasal swab self-testing format
• Rapid qualitative detection of SARS-CoV-2 antigen
• No complex instrument required
• Easy visual result reading
• Useful for home and point-of-care screening
• Designed for fast preliminary results
• Supports international public health screening needs
• Convenient for distributors, clinics, institutions, and bulk buyers

Note

The COVID-19 Ag Rapid Test Device Self Testing Device by LARKSOIS Pharma is developed to support fast, accessible, and user-friendly COVID-19 antigen screening.

Steps

• Wash or sanitize hands before testing
• Open the sealed test pouch only when ready to test
• Insert the nasal swab gently into the nostril as instructed
• Rotate the swab to collect the sample
• Place the swab into the buffer tube
• Mix the swab properly in the extraction liquid
• Add the required drops to the sample well
• Wait for the stated result time
• Read the result within the recommended window
• Dispose of used materials according to local waste guidance

Note

Always follow the kit insert supplied with the COVID-19 Ag Rapid Test Device Self Testing Device.

Positive

A positive result shows both C line and T line. Even a faint test line should be treated as positive if it appears within the valid reading time.

Negative

A negative result shows only the C line. This means SARS-CoV-2 antigen was not detected, but infection is not fully ruled out.

Invalid

If the C line does not appear, the test is invalid. Use a new kit and repeat the test according to the product insert.

Instructions

• Store in a dry place
• Keep sealed until use
• Do not freeze
• Avoid direct sunlight
• Keep away from children
• Do not use expired kits
• Use at room temperature as instructed
• Follow the storage temperature mentioned on the product label

Instructions

• Do not reuse any test component
• Do not touch the swab tip
• Avoid spilling buffer liquid
• Keep buffer away from eyes and skin
• Wash hands after testing
• Keep kit components away from small children
• Do not use damaged or expired tests
• Dispose of used kit components according to local waste rules

LARKSOIS Pharma provides internationally focused diagnostic solutions for healthcare distributors, clinics, laboratories, public health organizations, institutional buyers, and global procurement channels. The COVID-19 Ag Rapid Test Device Self Testing Device is developed to support fast, accessible, and user-friendly COVID-19 antigen screening.

Advantages

• International diagnostic product focus
• Reliable rapid testing solutions
• Suitable for distributors, clinics, and institutions
• User-friendly self-testing format
• Supports infectious disease screening workflows
• Practical nasal swab-based testing format
• Quality-focused standards under LARKSOIS Pharma