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Test Name:
Alpha Thalassemia
Alternate Name: H disease, Hb Barts, Constant Spring, alphahydrops, HBA1, HBA2, hemoglobinopathy
Order Entry Module: Not Applicable
Specimen Type: One of the following specimen types is required:
Blood: 5 mL Lavender EDTA Tube
Amniotic Fluid: 10-15 mL, Back-Up Culture Required
Cleaned CVS (Chorionic Villi): 5-15mg, Back-Up Culture Required
Cultured cells, confluent: 1x T25 flask
DNA: Minimum 6ug

Collection Information: Transport at room temperature.
Blood Samples can be stored in the fridge (4°C) for up to one week before shipping.
All other sample types need to be shipped overnight.

Required Information: CBC, Hemoglobin electrophoresis and ferritin results must also be submitted with sample.
Additional charges will apply if prerequisite results not provided.

Turnaround Time: 6 weeks
Interpretive Comments:
ear47mtete|20504125C0E0|LRCTEST_background|InterpretiveComments|Comments|0xffffab93010000001a01000001002a00
Turnaround Times:
Fetal Samples: 1-2 weeks
Prenatal Samples: 2-4 weeks

Additional Information: Samples must be sent from within Canada.

For any inquiries, please contact moleculargenetics@hhsc.ca.

Method of Analysis: Targeted PCR and Direct Sequence Analysis
Test was Last Updated: 3/17/2025
Testing Laboratory: Clinical Genetics
Testing Site: JHCC
LRC Specimen Requirement: One of the following specimen types is required:
Blood: 5 mL Lavender EDTA Tube
Amniotic Fluid: 10-15 mL, Back-Up Culture Required
Cleaned CVS (Chorionic Villi): 5-15mg, Back-Up Culture Required
Cultured cells, confluent: 1x T25 flask
DNA: Minimum 6ug

LRC Specimen Handling Instructions:
CBC, Hemoglobin electrophoresis and ferritin results must also be submitted with sample.

Transport at room temperature.
Blood Samples can be stored in the fridge (4°C) for up to one week before shipping.
All other sample types need to be shipped overnight.
JHCC Site, Room H2-19A, (905) 521-2100 ext. 76944.
For any inquiries, please contact moleculargenetics@hhsc.ca