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Written by
Dr. Shreya Gupta
BDS, MDS - Oral and Maxillofacial Pathology
Reviewed by
Dr. Ashish Ranjan
MBBS, MD (Pharmacology)
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Hemoglobin A2

You need to provide
Blood
This test is for
Male, Female

Understanding Hemoglobin A2


What is Hemoglobin A2?

Hemoglobin A2 test is done to check for Thalessamia and is done by drawing blood samples. Hemoglobin A2 is a regular variant of hemoglobin A, which consists two alpha and delta chains respectively. Thalassemia results in reduction of globin chains, which in return disturbs the balance of alpha and delta chains.


What is Hemoglobin A2 used for?

In order to check for Thalessamia, Hemoglobin A2 tests should be carried out. The symptoms which can lead to the disease are
• Dark urine
• Bone deformities, especially in the face
• Pale skin
• Fatigue



Interpreting Hemoglobin A2 results


Interpretations

Increase in the level of Hemoglobin A2 is indicative of beta thalessamia trait. 

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