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One Step Strip Style
PSA Test
Introduction
One
step PSA test is a rapid direct binding test for the
detection of prostate specific antigen (psa) in serum as an
aid in the diagnosis of prostate cancer. The test is based
on the principle of sandwich immunoassay for determination
of psa in serum. Monoclonal and polycional antibodies are
employed to identify psa specifically. This one step test is
very sensitive and only takes about 10-20 minutes. The
sensitivity of the test can reach to
4ug/l.
Specimen
collection
For
serum, collect blood into a container without anticoagulant.
Allow the blood to clot and separate the serum from the
clot. Use the serum for testing.
If the specimen cannot be
tested on the day of collection, store the serum specimen in
a refrigerator or freezer. Bring the specimens to room
temperature before testing. Do not freeze and thaw the
specimn repeatedly.
Test
procedure
Test strips and specimens
should be brought to room temperature(20-30℃) prior to
testing.
1.Open
the kit, hold the strip at the end without arrow or colored
sign.
2.Inserted
the end with arrow or colored sign of the strip into the
urine sample figure 1,waiting for only 3 seconds. Do not
immerse the strip into the urine sample over the signed
band!
3.Take
the strip out and lay the strip flat on a clean, dry and
nonabsorbent surface.
4.Wait
for 1 to 5 minutes and read the results as showed in figure
2.
Interpretation of results
1.Negative:only
one purple band appears on the control region and no clear
band on the test region. It means hcg in the sample is
negative.
2.Positive: two
distinct purple bands appear on the control and test region.
It means hcg in the sample is positive.
3.Weak positive: the red color band in the test region of strip shows dimmer
than the purple color band in the control region of strip.
It means it is necessary that test be done again in the 48
hours.
4.Strong positive: the red color band in the test region of strip show very
bright and the purple color band very dim in the control
region of strip. It means the pregnancy is developing in the
end of the first trimester.
5. Invalid: no
visible red at all, it means the test is fail.
Storage and stability
1.stored at normal room
temperature (4-30℃) up to the expiration date. The test
strips should be kept from direct sunlight, moisture and
heat. Do not freeze.
2.shelf life is 18 months.
Notes
1.the package of kit
should not be opened until it reaches the room temperature
after taken from the refrigerator.
2.the dryers in the
aluminum foil package are not victuals.
