iScreen
4 Panel
Drug
Test Dip
Card
Only
$3.40 EA
Test Features:
The iScreen drug
Test is an on-site
(rapid) urine test
offering low cost
and convenient collection.
The iScreen is used
by removing the
end cap and inserting
the detection device
into the collection
cup. Once the detection
device is inserted,
the tests will begin
to run. The test
results will be
visible in a few
minutes and if no
drugs are found
the corresponding
panel will develop
a red line below
the Control Line.
iScreen Urine
drug test kits
are the least
expensive and
most flexible
(meaning it
is possible
to test for
many different
drugs in different
combinations)
in testing drugs.
Results of an
iScreen urine
drug test detect
the presence
or absence of
specific drugs
in the urine.
A positive urine
test result
does not necessarily
mean that the
donor was under
the influence
of drugs at
the time of
the test. iScreen
can be defined
as a rapid,
one step screening
test for the
simultaneous,
qualitative
detection of
multiple drugs
and drug metabolites
in human urine.
iScreen Drug Test
4 panel urine drug
test is an immunoassay
based on the principle
of competitive binding.
Drugs which may
be present in the
urine specimen compete
against their respective
drug conjugate for
binding sites on
their specific antibody.
During testing,
a urine specimen
migrates upward
by capillary action.
A drug, if present
in the urine specimen
below its cut-off
concentration, will
not saturate the
binding sites of
its specific antibody.
The antibody will
then react with
the drug-protein
conjugate and a
visible colored
line will show up
in the test line
region of the specific
drug strip. The
presence of drug
above the cut-off
concentration will
saturate all the
binding sites of
the antibody. Therefore,
the colored line
will not form in
the test line region.
A drug-positive
urine specimen will
not generate a colored
line in the specific
test line region
of the strip because
of drug competition,
while a drug-negative
urine specimen will
generate a line
in the test line
region because of
the absence of drug
competition. To
serve as a procedural
control, a colored
line will always
appear at the control
line region, indicating
that proper volume
of specimen has
been added and membrane
wicking has occurred.
iScreen
4 Panel Drug Test
Screen
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