The Anti-Cardiolipin Antibody Test

If you are still in the dark about what is causing your fertility problems, you may want to ask your health care provider to run an anti-cardiolipin antibody test. This test is a very simple procedure. All it requires is a blood sample, which is taken by needle from a vein in your arm. This blood is then sent to a laboratory for testing.

The Results

When your results come in, your health care provider will help you to interpret the results. There should be three different measurments - one for each type of cardiolipin antibody.

  • Normal Results: Normal results mean that you have typical levels of cardiolipin antibodies in your blood. Normal IgG is below 23 ug/mL, while normal IgM and IgA is below 11 ug/mL.
  • Abnormal Results: Abnormal results indicate that you have higher-than-normal levels of cardiolipin antibody in your blood. Levels that are slightly above 23 ug/mL may not be a cause for concern. Sometimes, cardiolipin antibodies are elevated temporarily due to colds or the flu. Levels that are between 25ug/mL and 70 ug/mL however, may interfere with your ability to become pregnant or carry a pregnancy to term.

After the Test

Once you have your test results back, it is important to discuss your options with your health care provider. If you have borderline results, it is probably a good idea to perform the test again in about 6 weeks. This will allow for any fluctuations due to minor illnesses.

If your levels are high, you may consider treatment to help control the number of anti-cardiolipin antibodies in your blood. This will reduce your risk of blood clots and hopefully, allow you to conceive and carry a baby to term. Treatments generally involve medication, such as:

  • baby aspirin
  • Heparin
  • prednisone
  • cyclosporin
  • gamma globulin
  • plasmapheresis



Table of Contents
1. Can't get pregnant? Take this test
2. It's all in a blood test
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