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HelpTest Code REVE2 Erythrocytosis Evaluation, Blood
Ordering Guidance
Polycythemia vera and acquired causes of erythrocytosis should be excluded before ordering this evaluation.
Necessary Information
Send the following information with the specimen:
-Recent transfusion information
-Most recent complete blood cell count (CBC) results and serum erythropoietin (EPO) levels, if known
Hereditary Erythrocytosis Patient Information (T810) is strongly recommended and should include clinical and family history, CBC results, EPO levels, and JAK2 testing results, if known. Testing may proceed without this information; however, it allows for a more complete interpretation.
Specimen Required
Container/Tube:
Preferred: Lavender top (EDTA)
Acceptable: Yellow top (ACD solution B)
Specimen Volume: 5 mL
Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.
Reflex Tests
| Test ID | Reporting Name | Available Separately | Always Performed |
|---|---|---|---|
| SDEX | Sickle Solubility, B | Yes | No |
| IEF | Isoelectric Focusing, B | No | No |
| UNHB | Hb Stability, B | No | No |
| HPFH | Hb F Distribution, B | No | No |
| WASQR | Alpha Globin Gene Sequencing, B | Yes, (Order WASEQ) | No |
| WBSQR | Beta Globin Gene Sequencing, B | Yes, (Order WBSEQ) | No |
| WGSQR | Gamma Globin Full Gene Sequencing | Yes, (Order WGSEQ) | No |
| REVE0 | Erythrocytosis Summary Interp | No | No |
| WAGDR | Alpha Globin Clustr Locus Del/Dup,B | Yes, (Order AGDD) | No |
| WBGDR | Beta Globin Gene Cluster, Del/Dup,B | Yes, (Order WBGDD) | No |
| NHEP | Erythrocytosis Full Panel, NGS | Yes | No |
Specimen Type
Whole Blood EDTASpecimen Minimum Volume
2.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Whole Blood EDTA | Refrigerated | 7 days |
Reject Due To
| Gross hemolysis | Reject |
Reference Values
Definitive results and an interpretive report will be provided.
Day(s) Performed
Monday through Saturday
Report Available
3 to 25 daysSpecimen Retention Time
28 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
83020-26
83020
83021
83789
83068 (if appropriate)
82664 (if appropriate)
88184 (if appropriate)