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You are here : 3-RX.com > Medical Encyclopedia > Tests and Exams > Serum Pregnancy Test, Qualitative: Results and Values
      Category : Health Centers > Pregnancy and Childbirth

Serum Pregnancy Test, Qualitative

Alternate Names : Qualitative Pregnancy Test, Blood, Qualitative Human Chorionic Gonadotropin Blood Test, Qualititative Serum Beta-HCG

Serum Pregnancy Test, Qualitative | Preparation & Expectations | Results and Values

What do the test results mean?

Because the placenta produces HCG, it is an indicator of pregnancy. This test is not able to tell whether or not the pregnancy is healthy. Certain conditions besides pregnancy may cause a positive pregnancy test. These include:

  • a tumor of the placenta with death of the fetus
  • ovarian cancer and other types of cancer in some cases
  • blood or protein in the urine, which can interfere with the result
  • use of medications to prevent seizures, drugs to treat Parkinson's syndrome, or phenothiazine drugs, such as chlorpromazine, by the mother
  • The test may register as negative even though a woman is pregnant if the woman takes diuretic medications, or "fluid pills." These drugs interfere with the test results. In addition, the test does not become positive until at least 7 to 10 days after a woman becomes pregnant. In most cases, by the time a woman misses her period the test will be positive if she is pregnant.


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    Serum Pregnancy Test, Qualitative: Preparation & Expectations

     

    Author: Eva Martin, MD
    Reviewer: Adam Brochert, MD
    Date Reviewed: 04/16/01



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