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Lab Test Dictionary

Erythrocytosis Evaluation, Blood (REVE2)



Specimen Type

Whole Blood

Performing Lab

Mayo Medical Lab

Epic ID

Other Reference Test

Lab Test Days


Standard TAT

3-25 Days

Collection Information

Specimen Required

2.5-5 mL EDTA Whole Blood

Container Type

EDTA (Lavender-Top) Tube

Collection Instructions

Include a completed Mayo Hematology Patient Info form and should include clinical and family history, CBC results, EPO levels, and JAK2 testing results if known with sample to lab. An ACD Solution B (yellow-top) or sodium heparin (green-top) tube is also acceptable.

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room Temp: Unacceptable; Refrigerated: 7 Days; Frozen: Unacceptable

Rejection Criteria

Gross hemolysis

Test Volume Required

5 mL EDTA Whole Blood

Minimum Test Volume

2.5 mL

Processing Instructions

Print the completed Mayo Metabolic Hematology Patient Info form scanned into Media in patient's chart and print most recent CBC results to submit with sample. Order in Mayolink and send with Mayo courier Monday-Friday.


Insurance authorization is required prior to draw for Outpatients. Requires MJ approval for Inpatients.

CPT Codes

83020-26, 83020, 83021, 83789; 83068; 82664; need auth for Genetic CPTS 88184, 81259, 81269, 81363, 81364, 81404, 81479 x 3


4/25/23, 5/24/23