Diagnostic Kit for Alpha-fetoprotein (fluorescence immunochromatographic assay)

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Diagnostic Kit for Alpha-fetoprotein(fluorescence immunochromatographic assay) For in vitro diagnostic use only Please read this package insert carefully prior to use and strictly follow the instructions. Reliability of assay results cannot be guaranteed if there are any deviations from the instructions in this package insert. INTENDED USE Diagnostic Kit for Alpha-fetoprotein (fluorescence immunochromatographic assay) is a fluorescence immunochromatographic assay for the quantitative detecti...


Product Detail

Diagnostic Kit for Alpha-fetoprotein(fluorescence immunochromatographic assay)
For in vitro diagnostic use only

Please read this package insert carefully prior to use and strictly follow the instructions. Reliability of assay results cannot be guaranteed if there are any deviations from the instructions in this package insert.

INTENDED USE

Diagnostic Kit for Alpha-fetoprotein (fluorescence immunochromatographic assay) is a fluorescence immunochromatographic assay for the quantitative detection of Alpha-fetoprotein (AFP) in human serum or plasma, which is mainly used to auxiliary diagnosis,curative effect and prognosis of primary hepatocellular carcinoma.All positive sample must be confirmed by other methodologies. This test is intended for healthcare professional use only.

SUMMARY

Alpha-fetoprotein (AFP) is one of the commonly used tumor markers.It is a glycoprotein with a molecular weight of 70,000 and sugar of 4%.It is mainly synthesized by fetal liver,followed by yolk sac.The fetus began to synthesize for 6 weeks, reaching a peak of 12 to 15 weeks, serum concentration of 1 to 3 g/L, and umbilical cord blood at birth of 10 to 100 mg/L;1 to 2 years after birth to adult level;Normal pregnancy can reach 90 to 500 ng/mL in the middle;Normal human serum AFP content is between 2 and 8 ng/mL,but many diseases, especially hepatitis, affect the AFP value.

PRINCIPLE OF THE PROCEDURE

The membrane of the test device is coated with anti AFP antibody on the test region and goat anti rabbit IgG antibody on the control region. Lable pad are coated by fluorescence labeled anti AFP antibody and rabbit IgG in advance. When testing positive sample, the AFP antigen in sample combine with fluorescence labeled anti AFP antibody, and form immune mixture. Under the action of the immunochromatography, the complex flow in the direction of absorbent paper, when complex passed the test region, it combined with anti AFP coating antibody, forms new complex.AFP level is positively correlated with fluorescence signal, and the concentration of AFP in sample can be detected by fluorescence immunoassay assay.

REAGENTS AND MATERIALS SUPPLIED

25T package components

.Test card individually foil pouched with a desiccant 25T
.Sample diluents 25T
.Package insert 1

MATERIALS REQUIRED BUT NOT PROVIDED
Sample collection container,timer

SAMPLE COLLECTION AND STORAGE
1.The samples tested can be serum, heparin anticoagulant plasma or EDTA anticoagulant plasma.

2.According to standard techniques collect sample. Serum or plasma sample can be kept refrigerated at 2-8℃ for 7days and cryopreservation below -15°C for 6 months.
3.All sample avoid freeze-thaw cycles.

ASSAY PROCEDURE
Please read the instrument operation manual and package insert before testing.

1.Lay aside all reagents and samples to room temperature.
2.Open the Portable Immune Analyzer(WIZ-A101), enter the account password login according to the operation method of the instrument, and enter the detection interface.
3.Scan the dentification code to confirm the test item.
4.Take out the test card from the foil bag.
5.Insert the test card into the card slot, scan the QR code, and determine the test item.
6.Add 20μL serum or plasma sample to sample diluent, and mix well..
7.Add 80μL sample solution to sample well of the card.
8.Click the “standard test” button, after 15 minutes, the instrument will automatically detect the test card, it can read the results from the display screen of the instrument, and record/print the test results.
9.Refer to the instruction of Portable Immune Analyzer(WIZ-A101).

EXPECTED VALUES

AFP:<10ng/mL
It is recommended that each laboratory establish its own normal range representing its patient population.

TEST RESULTS AND INTERPRETATION
.The above data is the result of AFP reagent test, and it is suggested that each laboratory should establish a range of AFP detection values suitable for the population in this region. The above results are for reference only.

.The results of this method are only applicable to the reference ranges established in this method, and there is no direct comparability with other methods.
.Other factors can also cause errors in detection results, including technical reasons, operational errors and other sample factors.

STORAGE AND STABILITY
1.The kit is 18 months shelf-life from the date of manufacture. Store the unused kits at 2-30°C. DO NOT FREEZE. Do not use beyond the expiration date.

2.Do not open the sealed pouch until you are ready to perform a test, and the single-use test is suggested to be used under the required environment (temperature 2-35℃, humidity 40-90%) within 60 mins as quickly as possible.
3.Sample diluent is used immediately after being opened.

WARNINGS AND PRECAUTIONS
.The kit should be sealed and protected against moisture.

.All positive specimens shall be validated by other methodologies.
.All specimens shall be treated as potential pollutant.
.DO NOT use expired reagent.
. NOT interchange reagents among kits with different lot No..
.DO NOT reuse test cards and any disposable accessories.
.Misoperation, excessive or little sample can lead to result deviations.

LIMITATION
.As with any assay employing mouse antibodies, the possibility exists for interference by human anti-mouse antibodies (HAMA) in the specimen. Specimens from patients who have received preparations of monoclonal antibodies for diagnosis or therapy may contain HAMA. Such specimens may cause false positive or false negative results.

.This test result is only for clinical reference, should not serve as the only basis for clinical diagnosis and treatment, the patients clinical management should be comprehensive consideration combined with its symptoms, medical history, other laboratory examination, treatment response, epidemiology and other information.
.This reagent is only used for serum and plasma tests. It may not obtain accurate result when used for other samples such as saliva and urine and etc.

PERFORMANCE CHARACTERISTICS

Linearity 1ng/mL to 1000ng/mL relative deviation:-15% to +15%.
Linear correlation coefficient:(r)≥0.9900
Accuracy The recovery rate shall be within 85% – 115%.
Repeatability CV≤15%
Specificity(None of the substances at the interferent tested interfered in the assay)

Interferent

Interferent concentration

Acetaminophen

1500μg/mL

Acetylsalicylic acid

10mg/mL

CEA

500μg/mL

Hemoglobin

200μg/mL

transferrin

100μg/mL

Horse radish peroxidase

2000μg/mL

LH

200mIU/mL

FSH

200mIU/mL

HCG

20000mIU/mL

TSH

200μIU/mL

BSA

5mg/mL

Vinblastine

500μg/mL

Cisplatin

1000μg/mL

Azathioprine

30mg/L

Bleomycin

100μU/mL

REFERENCES
1.Hansen JH,et al.HAMA Interference with Murine Monoclonal Antibody-Based Immunoassays[J].J of Clin Immunoassay,1993,16:294-299.
2.Levinson SS.The Nature of Heterophilic Antibodies and the Role in Immunoassay Interference[J].J of Clin Immunoassay,1992,15:108-114.

Key to symbols used:

 t11-1 In Vitro Diagnostic Medical Device
 tt-2 Manufacturer
 tt-71 Store at 2-30℃
 tt-3 Expiration Date
 tt-4 Do Not Reuse
 tt-5 CAUTION
 tt-6 Consult Instructions For Use

Xiamen Wiz Biotech CO.,LTD
Address:3-4 Floor,NO.16 Building,Bio-medical Workshop,2030 Wengjiao West Road,Haicang District,361026,Xiamen,China
Tel:+86-592-6808278
Fax:+86-592-6808279


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