Antiglomerular Basement Membrane Antibody

This is a test to determine the presence of antibodies to the glomerular basement membrane in the kidneys and lungs. The antibodies causes glomerulonephritis in the kidneys and bleeding into the lungs. Glomerulonephritis is an inflammation of the kidneys. The antibodies along with the lung and kidney problems are known as Goodpasture's syndrome. The antibody levels can be used to measure the response to therapy.

PREPARATION FOR TEST

No preparation or fasting is necessary.

NORMAL FINDINGS

Tissue

  • Negative: No immunofluorescence is noted on the renal or lung tissue basement membrane.

Blood EIA (Enzyme Immunoassay)

  • Negative: Less than 20 units.

  • Borderline: 20 to 100 units.

  • Positive: Greater than 100 units.

Ranges for normal findings may vary among different laboratories and hospitals. You should always check with your doctor after having lab work or other tests done to discuss the meaning of your test results and whether your values are considered within normal limits.

MEANING OF TEST

Your caregiver will go over the test results with you and discuss the importance and meaning of your results, as well as treatment options and the need for additional tests if necessary.

OBTAINING THE TEST RESULTS

It is your responsibility to obtain your test results. Ask the lab or department performing the test when and how you will get your results.