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Lab Terminology
Understanding Lab Tests for Children with Biliary Atresia
Navigating the medical landscape can be overwhelming, especially when your child is diagnosed with biliary atresia. Here's a simplified guide to help you understand common lab tests and what they mean for your child's health.
Complete Blood Count (CBC):​​
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Red Blood Cells: Carry oxygen to tissues.
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White Blood Cells: Defend against infections.
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Hemoglobin: The protein in red blood cells that carries oxygen.
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Hematocrit: Measures the ratio of red blood cells to plasma in the blood.
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Platelets: Help in blood clotting.
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Hepatic Function Panel:​​
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Serum Albumin Test: Measures albumin levels to assess liver health. Low levels may indicate liver issues.
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Alanine Transaminase (ALT) Test: Checks for liver damage by measuring ALT enzyme levels.
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Aspartate Transaminase (AST) Test: Similar to ALT, measures AST enzyme levels to evaluate liver and heart health.
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Indirect Bilirubin Test: Measures bilirubin from red blood cell breakdown, which travels to the liver.
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Direct Bilirubin Test: Measures bilirubin after it's processed by the liver and before it's eliminated through stool.
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Alkaline Phosphatase Test: Checks levels of ALP, a protein found mainly in the liver, bile ducts, and bones.
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Gamma-Glutamyl Transpeptidase Test: Assesses liver function by measuring this enzyme, also an indicator of alcohol ingestion.​
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Coagulation Panel:​
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International Normalized Ratio (INR): Measures blood clotting time. Prolonged clotting may indicate liver issues or clotting factor deficiencies.​​​
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We hope this guide makes it easier for you to understand your child's lab tests. For more in-depth information, consult your healthcare provider.
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Sources: Johns Hopkins Medicine, Mayo Clinic, Mount Sinai NY
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