Migi (Cat) Feline Leukemia Virus Antigen（FeLV-Ag）Rapid Quantitative Test Kit

Catalog Number: MG-CA-R028

Product Specifications

Attribute	Value
Place of Origin	China
Classification	Specific Reagents
CAT No.	MG-CA-R028
Package	Box
Appearance	Liquid
Specification	10T
Storage	Room Temperature
Shelf life	2 years
MOQ	10 boxes
Suitable for	Veterinary
Grade	Reagent Grade

Specification

10 Tests/Box Cat.No.: MG-CA-R028

Intended Use

The FeLV-Ag test is a fluorescence immunoassay designed for use with an Immunofluorescence Analyzer to quantitatively determine the concentration of leukemia virus antigen (FeLV-Ag) in feline serum or plasma. It is used as an aid in diagnosing and monitoring feline leukemia virus infection. For in vitro diagnostic use only. For professional use only.

Clinical Significance

Feline leukemia virus (FeLV) is one of the most significant infectious diseases of cats, associated with immunosuppression, anaemia, and lymphoma. Because many infected cats are asymptomatic carriers for extended periods, antigen detection is the most reliable method of identifying infection.

Quantitative FeLV antigen measurement supports early diagnosis, appropriate isolation of viraemic cats, and informed vaccination and management decisions in multi-cat settings.

Test Principle

This test employs a quantitative double antibody sandwich fluorescence immunoassay technique. The intensity of the fluorescent signal reflects the amount of FeLV-Ag captured, and the concentration is expressed in Tu/ml.

Materials

Provided: 10 Individual Sealed Pouches (each containing a Test Device and a Desiccant Pouch) ID Chip : 1 Instructions for Use : 1 Cotton Swabs : 10 FeLV-Ag Sample Buffer Tubes : 10 Pipette Tips : 10 Required but Not Provided: Immunofluorescence Analyzer Timer Pipette Centrifuge

Storage and Stability

Store the test kit at 4–30°C until the expiration date. Perform the test at 18–28°C after opening the Test Device. Once the pouch is opened, complete the test within 30 minutes.

Specimen Collection and Preparation

The test can be performed using serum or plasma. Serum/Plasma Preparation: Separate serum or plasma (EDTA anticoagulant is recommended) from blood within 3 hours of collection. If the specimen is severely hemolyzed, obtain a new specimen. Ideally, the test should be performed immediately after specimen collection. If testing cannot be completed within 3 hours, store the specimen at 2–8°C for up to 72 hours. For long-term storage, specimens should be kept below -20°C. Preparation for Testing: Bring all materials to room temperature before use. Thaw and mix frozen specimens thoroughly prior to testing. Avoid repeated freezing and thawing of specimens. Use only clear, non-hemolyzed specimens.

Test Procedure

Refer to the Immunofluorescence Analyzer Operation Manual for detailed instructions. Place the Test Device on a clean, level surface. Insert the ID Chip into the meter and click “Read ID Chip.” Ensure that the Test Device lot number matches the ID Chip number. Pipette 20 μl of the prepared sample into the FeLV-Ag Sample Buffer and mix gently. Avoid vigorous agitation and foaming. Pipette 100 μl of the mixed sample into the sample well (S) of the Test Device, ensuring no bubbles form. Test Modes: Standard Test: Click “Standard Test,” insert the Test Device into the meter holder immediately after adding the sample, and click “Start Test.” The meter will automatically countdown and display the result. Quick Test: Click “Quick Test,” start the timer immediately after adding the sample mixture, and leave the Test Device at room temperature (18–28°C) for 15 minutes. Then insert the Test Device into the meter holder and click “Start Test.” The instrument will automatically scan and display the result. Results are displayed on the main screen and can be printed automatically or manually by clicking “Print.”

Quality Control

Each FeLV-Ag Rapid Quantitative Test includes an internal control for routine quality control. This internal control is conducted with each patient sample. If the internal control fails, the meter will display an error message, indicating that the test should be repeated.

Interpretation of Results

Reference Range for FeLV-Ag in Feline Serum or Plasma: Detection Range:

• 5.0–320 Tu/ml Result (Tu/ml) Interpretation Suggestion ≤ 10 Negative (-) 10–13 Suspected (±) 13–25 Weak Positive (+) 25–100 Medium Positive (++)

100 Strong Positive (+++) Each laboratory should establish a reference range representative of the population being evaluated.

Warnings and Limitations

This kit is for in vitro diagnostic use only. Inspect packaging and labels before use. Do not use if the pouch is damaged or the vial appears compromised. Do not use the Test Device beyond the expiration date. Use a new pipette tip for each specimen to avoid contamination. Technical or procedural errors, as well as unlisted substances in specimens, may interfere with the test and result in erroneous outcomes.