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Drug Test Specifications > Pregnancy Tests
Pregnancy Test Specifications
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Human chorionic
gonadotropin (hCG) is a glycoprotein hormone produced by the
developing placenta shortly after fertilization. In normal
pregnancy, hCG can be detected in both urine and serum as early
as 7 to 10 days
after conception (1-4). hCG levels continue to rise very
rapidly, frequently exceeding 100 mIU/mL by the first missed
menstrual period (2-4), and peaking in the 100,000-200,000 mIU/mL
range about 10-12 weeks into pregnancy. The appearance of hCG in
both urine and serum soon after conception, and its subsequent
rapid rise in concentration during early gestational growth,
make it an excellent marker for the early detection of
pregnancy.
The One Step hCG
Single Test Card is a rapid test that qualitatively detects the
presence of hCG in urine specimen at the sensitivity of 25 mIU/mL.
The test utilizes a combination of monoclonal and polyclonal
antibodies to selectively detect elevated levels of hCG in
urine. At the level of claimed sensitivity, the One Step hCG
Single Test Card shows no cross-reactivity interference from the
structurally related glycoprotein hormones hFSH, hLH and hTSH at
high physiological levels.
SPECIMEN COLLECTION & PREPARATIONUrine Assay
A urine specimen
must be collected in a clean and dry container. A first morning
urine specimen is preferred since it generally contains the
highest concentration of hCG; however, urine specimens collected
at any time of the day may be used. Urine specimens exhibiting
visible precipitates should be centrifuged, filtered, or allowed
to settle to obtain a clear specimen for testing.
One Step hCG Single Test Card
A rapid, one step
test for the qualitative detection of human chorionic
gonadotropin (hCG) in urine. For professional in vitro
diagnostic use only.
INTENDED USE
The One Step hCG
Single Test Card is a rapid chromatographic immunoassay for the
qualitative detection of human chorionic gonadotropin (hCG) in
urine to aid in the early detection of pregnancy.
PRINCIPLE
The One Step hCG
Single Test Card is a rapid chromatographic immunoassay for the
qualitative detection of human chorionic gonadotropin (hCG) in
urine to aid in the early detection of pregnancy. The test
utilizes a combination of antibodies including a monoclonal hCG
antibody to selectively detect elevated levels of hCG. The assay
is conducted by immersing the strip of the test card in a urine
specimen and observing the formation of colored lines. The
specimen migrates via capillary action along the membrane to
react with the colored conjugate.
Positive specimens
react with the specific antibody-hCG-colored conjugate to form a
colored line at the test line region of the membrane. Absence of
this colored line suggests a negative result. To serve as a
procedural control, a colored line will always appear at the
control line region if the test has been performed properly.
PRECAUTIONS
• For professional in vitro
diagnostic use only. Do not use after the expiration date.
• The test card should remain
in the sealed pouch until use.
• All specimens should be
considered potentially hazardous and handled in the same manner
as an infectious agent.
• The test card should be
discarded in a proper biohazard container after testing.
STORAGE AND STABILITY
Store as packaged in
the sealed pouch at 4-30°C. The test card is stable through the
expiration date printed on the sealed pouch. The test card must
remain in the sealed pouch until use. DO NOT FREEZE. Do
not use beyond the expiration date.
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