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Test Code HIF2A Hypoxia-Inducible Factor Alpha (EPAS1/HIF2A) Gene, Exons 9 and 12 Sequencing, Whole Blood


Specimen Required


Only orderable as part of a profile. For more information see HEMP / Hereditary Erythrocytosis Mutations, Whole Blood.

 

Container/Tube: Lavender top (EDTA)

Specimen Volume: 3 mL

Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.


Useful For

Assessing HIF2A/EPAS1 in the evaluation of an individual with JAK2-negative erythrocytosis associated with lifelong sustained increased red blood cell (RBC) mass, elevated RBC count, hemoglobin, or hematocrit

Method Name

Only orderable as part of a profile. For more information see HEMP / Hereditary Erythrocytosis Mutations, Whole Blood.

 

Polymerase Chain Reaction (PCR)/Sanger Sequencing

Reporting Name

HIF2A Gene, Mutation Analysis, B

Specimen Type

Whole blood

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Whole blood Refrigerated (preferred) 30 days
  Ambient  14 days

Reference Values

Only orderable as part of a profile. For more information see HEMP / Hereditary Erythrocytosis Mutations, Whole Blood.

 

An interpretive report will be provided.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

81479-Unlisted molecular pathology procedure

LOINC Code Information

Test ID Test Order Name Order LOINC Value
HIF2A HIF2A Gene, Mutation Analysis, B 103953-6

 

Result ID Test Result Name Result LOINC Value
34647 HIF2A Gene Sequencing Result 82939-0

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject
Moderately to severely clotted Reject

Report Available

10 to 25 days