Donor Specific Antibody (DSA)
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About Donor Specific Antibody (DSA)
The Donor Specific Antibody (DSA) test is utilized to identify if an individual's immune system is generating antibodies against a donor's organ or tissue. DSA allows for the identification of antibodies targeting the donor's anti-human leukocyte antigens (HLA), making it a valuable tool for post-transplant testing. The presence or absence of these HLA-specific antibodies significantly impacts the survival of the transplanted organ.
This test is typically performed by the healthcare providers after a transplant operation to monitor for potential organ rejection
Symptoms of transplant rejection
In cases where the donor and recipient are not well-matched, the recipient's immune system might reject the transplanted organ or tissue, leading to symptoms such as:
It is crucial to promptly seek medical attention if you experience any of these symptoms following a transplant
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Fever
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Tenderness or pain around the transplant site
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Swelling in the feet and hands
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Decreased urine output
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Shortness of breath
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Chest pain
What is the DSA test used for?
Healthcare providers recommend this test
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Liver damage
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Liver disease
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Bile duct blockage
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Hemolytic anemia
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Liver-related metabolic problems
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Jaundice in newborns
Preparation for the test
No special preparation is required for the DSA test.
Interpretation of Test Results
The test result may come as positive or negative.
Positive result
Positive test results indicate the presence of antibodies against the donor's organ or tissue in the blood sample. This means that the recipient's immune system is attacking the transplanted organ.
Negative result
Negative test results indicate the absence of donor specific antibodies in the blood sample.
FAQs on Donor Specific Antibody (DSA)
A healthcare provider will draw a small blood sample from a vein in your arm using a needle. The blood will be collected in a test tube or vial and sent to the lab for analysis
There are no known risks associated with this test. During a blood test, one may experience minor pain or bruising where the needle was inserted, but most symptoms will subside quickly
The DSA test result is usually available within 2 working days after the sample collection. This duration may vary depending on the particular diagnostic clinic
Anti-HLA antibodies develop in response to proteins that are similar to tissue types, typically after undergoing transplantation, pregnancy, or receiving a blood transfusion. In some cases, the reason for the formation of these antibodies remains unclear
If you receive a positive DSA test, your healthcare provider will guide you on the subsequent actions to be taken, which could involve further testing, preventive measures, or treatment options
Donor Specific Antibody (DSA)
