Testing & Diagnosis for Alpha-1 Antitrypsin Deficiency (AATD) in Children

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How is AATD diagnosed?

AATD is diagnosed through a simple blood test that measures the level of alpha-1 antitrypsin in the blood.

Your child’s doctor may do other tests to check for liver disease as well. These can include:

  • Ultrasound — to get a better view of your child’s liver
  • Liver biopsy — to examine a sample of liver tissue under a microscope
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