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High Accuracy Malaria pf/pv Rapid Diagnostic test, easily and quick
operation, Gold Colloidal method
Product Name:
Malaria P.f & P.v Antigen Test (Cassette)
NTENDED USE: Malaria P.f & P.v Ab test is an immunochromatographic (rapid)
test for the qualitative detection of antigen of all specific to
Plasmodium falciparum and Plasmodium vivax simultaneously in human
serum or plasma or whole blood.
TEST PRINCIPLE
The Malaria P.f./P.v. Rapid Test Device (Whole Blood) is a
qualitative, membrane based immunoassay for the detection of P.f
and P.v antigens in whole blood. The membrane is pre-coated with
anti-HRP-II antibodies and anti-pLDH antibodies. During testing,
the whole blood specimen reacts with the dye conjugate, which has
been pre -coated on the test strip. The mixture then migrates
upward on the membrane by capillary action, reacts with
anti-Histidine-Rich Protein II (HRP-II) antibodies on the membrane
on P.f Test Line region and with anti-pLDH antibodies on the
membrane on P.v. Line region. If the specimen contains HRP-II or
Plasmodium-specific P.vivaLDH or both, a colored line will appear
in P.f line region or P.v. line region or two colored lines will
appear in P.f line region and P.v. line region. The absence of the
colored lines in P.f line region or P.v. line region indicates that
the specimen does not contain HRP-II and/or Plasmodium- specific
P.vivaLDH. To serve as a procedure control, a colored line will
always appear in the control line region indicating that proper
volume of specimen has been added and membrane wicking has
occurred.
TEST PROCEDURE
1. Bring the pouched test device to room temperature(15-30℃) prior
to testing. Do not open pouch until ready to perform the assay.
2. Remove the test device from the sealed pouch. Lay it on a flat,
clean and dry surface.
3. Use the pipette to draw and slowly add 1 drop of whole blood to
the sample well.
4. Hold the buffer bottle vertically and add 1 drop to the sample
well. / If using a pipette, change a new one to avoid
cross-contamination. Draw and transfer 2-3 drops of buffer to the
sample well.
5. Interpret test results within 10-15 minutes. Do not interpret
after 20 minutes.
Caution: The above interpreting time is based on room temperature
range of 15 - 30°C. If your room temperature is significantly lower
than15 °C, then the interpreting time should be properly increased
to 30 minutes.
INTERPRETATION OF RESULTS
Malaria P.f Positive
The control line and Malaria P.f line (T1) are visible in the
result window. The test is positive for Malaria P.f.
Malaria P.v Positive
The control line and Malaria P.v line (T2) are visible in the
result window. The test is positive for Malaria P.v.
Malaria P.f and Malaria P.v Positive
The control line, Malaria P.f (T1) and Malaria P.v (T2) lines are
visible in the result window. The test is positive for Malaria P.f
and Malaria P.v.
Negative
The control line is the only line visible in the result window. No
Malaria P.f or Malaria P.v has been detected.
Invalid
If the control line does not appear in the result window, the test
results are INVALID regardless of the presence or absence of the
line in the test region.
Performance Study
Sensitivity
The Malaria P.f./ P.v. Rapid Test Device (Whole Blood) has been tested with microscopy on clinical samples. The results show that the sensitivity of the Malaria P.f./ P.v. Rapid Test Device (Whole Blood) is >98% when compared to results obtained with microscopy.
Specificity
The Malaria P.f./ P.v. Rapid Test Device (Whole Blood) uses antibodies that are highly specific to Malaria P.f.-specific and P.vivaxLDH antigens in whole blood. The results show that the specificity of the Malaria P.f./ P.v. Rapid Test Device (Whole Blood) is over 99.9%, when compared to results obtained with microscopy.
Method | Microscopy | Total | |||||
Malaria P.f./ P.v. | Results | Positive | Negative | Results | |||
Rapid Test | P. v. | P. f. | |||||
Positive | 49 | 80 | 0 | 129 | |||
Device | |||||||
Negative | 1 | 0 | 451 | 452 | |||
Total | Results | 50 | 80 | 451 | 581 | ||
Comment: Blood Samples infected by Plasmodium falciparum (n=80).Plasmodium vivax (n=50) were included, as well as 451 malaria negative samples to be confirmed with microscopy.
Relative Sensitivity for P.f.-specific antigens: 80/80> 99.9% (96.4%~100.0%)*
Relative Sensitivity for P.v. antigens: 49/50=98.0% (89.6%~100.0%)*
Relative Specificity: 451/451>99.9% (99.3%~100.0%)*
Accuracy: (49+80+451)/(50+80+451)=580/581=99.8% (99.0%~100.0%)*
* 95% Confidence Interval
Minimum Detection Level | |||
Type | Parasites/μl | ||
P. falciparum | 200 | ||
P.vivax | 1500 |
ORIENT NEW LIFE MEDICAL CO., LTD. | |
Contact: | Jerry Meng |
Email: | Jerry @ newlifebiotest .com |
Tel. | +86 18657312116 |
SKYPE | enetjerry |