Hemoglobin A2, Quantitative

Last Modified: 9/22/2021 10:52:17 AM


Medical Necessity Documentation:  
Client Notes:  
Patient Preparation:

Blood transfusion within the last 4 months may affect results
Specimen Requirements:

5.0 mL Whole Blood in a Lavender Top Tube - EDTA
Collection Instructions:

Patient age and ethnicity must be on order for proper interpretation.
Minimum Volume: 2.0 mL Whole Blood
Transport & Storage: Temperature/Stability:

7 days Ambient (transport
7 days Refrigerated
Rejection Criteria: Frozen
Reference Range: < 31 days: < 1.0 %
< 91 days: < 2.3 %
< 181 days: < 2.5 %
< 366 days: < 2.7 %
>= 366 days: 1.8 - 3.5 %
Critical Ranges:  
Test Comments:  
Methodology: HPLC
Clinical Significance: Screen for beta thalassemia. Note that iron deficiency can result in decreased Hb-A2 levels and, therefore, may lead to a normal Hb-A2 level even in affected patients
Documentation:  
Custom Panel: No

PRODUCTION SCHEDULE

Turn Around Time: 2 to 3 days
Days Performed: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
Sites Performed: Quest - Chantilly
PHL Test Code: MSOT
EPIC Test Code:
Send Out Test Code: 4974
Alternate Test Names: A2 Column
Included Tests:  
CPT Coding: 83020

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