Hemoglobin A<sub>2</sub> Synonyms A₂ Hemoglobin

Test Includes Quantitation of Hb A₂ by column chromatography

Laboratory Special Hematology

Request Form Routine Blood Requisition

Phone (212) 305-5001

Availability Mon-Fri, 8:30 AM - 4:30 PM

Turnaround Time 2-7 days

Special Instructions Collection date and time must be on requisition.

Specimen Blood

Volume 7 mL

Minimum Volume 1 mL

Container Light blue top (sodium citrate) tube

Collection Routine venipuncture

Causes for Rejection Specimen hemolyzed or clotted, tube not filled with the minimum volume or does not meet labeling requirements

Reference Range 1.5% to 3.1%

Use Investigate hemolytic anemia for hemoglobinopathies, especially thalassemia, particularly beta-thalassemia trait

Methodology Column microchromatography